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CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: Content of package.xml: <package format="2"> <name>beginner_tutorials</name> <version>0.0.0</version> <description>The first test package</description>

<maintainer email="alexander@hasenfratz-leloup.de">Alexander Hasenfratz</maintainer>

<license>GPLv3</license>

<buildtool_depend>catkin</buildtool_depend> <build_depend>roscpp</build_depend> <build_depend>rospy</build_depend> <build_depend>std_msgs</build_depend> <build_depend>message_generation</build_depend> <build_export_depend>roscpp</build_export_depend> <build_export_depend>rospy</build_export_depend> <build_export_depend>std_msgs</build_export_depend> <exec_depend>roscpp</exec_depend> <exec_depend>rospy</exec_depend> <exec_depend>std_msgs</exec_depend> <exec_depend>message_runtime</exec_depend>

<export>

</export> </package>

Content of CMakeLists.txt: cmake_minimum_required(VERSION 2.8.3) project(beginner_tutorials)

Compile as C++11, supported in ROS Kinetic and newer

add_compile_options(-std=c++11)

Find catkin macros and libraries

if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)

is used, also find other catkin packages

find_package(catkin REQUIRED COMPONENTS roscpp rospy std_msgs message_generation )

System dependencies are found with CMake's conventions

find_package(Boost REQUIRED COMPONENTS system)

Uncomment this if the package has a setup.py. This macro ensures

modules and global scripts declared therein get installed

See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html

catkin_python_setup()

#

Declare ROS messages, services and actions

#

To declare and build messages, services or actions from within this

package, follow these steps:

* Let MSG_DEP_SET be the set of packages whose message types you use in

your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).

* In the file package.xml:

* add a build_depend tag for "message_generation"

* add a build_depend and a run_depend tag for each package in MSG_DEP_SET

* If MSG_DEP_SET isn't empty the following dependency has been pulled in

but can be declared for certainty nonetheless:

* add a run_depend tag for "message_runtime"

* In this file (CMakeLists.txt):

* add "message_generation" and every package in MSG_DEP_SET to

find_package(catkin REQUIRED COMPONENTS ...)

* add "message_runtime" and every package in MSG_DEP_SET to

catkin_package(CATKIN_DEPENDS ...)

* uncomment the add_*_files sections below as needed

and list every .msg/.srv/.action file to be processed

* uncomment the generate_messages entry below

* add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

Generate messages in the 'msg' folder

add_message_files( FILES Num.msg )

Generate services in the 'srv' folder

add_service_files(

FILES

Service1.srv

Service2.srv

)

Generate actions in the 'action' folder

add_action_files(

FILES

Action1.action

Action2.action

)

Generate added messages and services with any dependencies listed here

generate_messages( DEPENDENCIES std_msgs )

#

Declare ROS dynamic reconfigure parameters

#

To declare and build dynamic reconfigure parameters within this

package, follow these steps:

* In the file package.xml:

* add a build_depend and a run_depend tag for "dynamic_reconfigure"

* In this file (CMakeLists.txt):

* add "dynamic_reconfigure" to

find_package(catkin REQUIRED COMPONENTS ...)

* uncomment the "generate_dynamic_reconfigure_options" section below

and list every .cfg file to be processed

Generate dynamic reconfigure parameters in the 'cfg' folder

generate_dynamic_reconfigure_options(

cfg/DynReconf1.cfg

cfg/DynReconf2.cfg

)

#

catkin specific configuration

#

The catkin_package macro generates cmake config files for your package

Declare things to be passed to dependent projects

INCLUDE_DIRS: uncomment this if your package contains header files

LIBRARIES: libraries you create in this project that dependent projects also need

CATKIN_DEPENDS: catkin_packages dependent projects also need

DEPENDS: system dependencies of this project that dependent projects also need

catkin_package(

INCLUDE_DIRS include

LIBRARIES beginner_tutorials

CATKIN_DEPENDS message_runtime roscpp rospy std_msgs

DEPENDS system_lib

)

#

Build

#

Specify additional locations of header files

Your package locations should be listed before other locations

include_directories(

include

${catkin_INCLUDE_DIRS} )

Declare a C++ library

add_library(${PROJECT_NAME}

src/${PROJECT_NAME}/beginner_tutorials.cpp

)

Add cmake target dependencies of the library

as an example, code may need to be generated before libraries

either from message generation or dynamic reconfigure

add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

Declare a C++ executable

With catkin_make all packages are built within a single CMake context

The recommended prefix ensures that target names across packages don't collide

add_executable(${PROJECT_NAME}_node src/beginner_tutorials_node.cpp)

Rename C++ executable without prefix

The above recommended prefix causes long target names, the following renames the

target back to the shorter version for ease of user use

e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node"

set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "")

Add cmake target dependencies of the executable

same as for the library above

add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

Specify libraries to link a library or executable target against

target_link_libraries(${PROJECT_NAME}_node

${catkin_LIBRARIES}

)

#

Install

#

all install targets should use catkin DESTINATION variables

See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html

Mark executable scripts (Python etc.) for installation

in contrast to setup.py, you can choose the destination

install(PROGRAMS

scripts/my_python_script

DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}

)

Mark executables and/or libraries for installation

install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node

ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}

LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}

RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}

)

Mark cpp header files for installation

install(DIRECTORY include/${PROJECT_NAME}/

DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}

FILES_MATCHING PATTERN "*.h"

PATTERN ".svn" EXCLUDE

)

Mark other files for installation (e.g. launch and bag files, etc.)

install(FILES

# myfile1

# myfile2

DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}

)

#

Testing

#

Add gtest based cpp test target and link libraries

catkin_add_gtest(${PROJECT_NAME}-test test/test_beginner_tutorials.cpp)

if(TARGET ${PROJECT_NAME}-test)

target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})

endif()

Add folders to be run by python nosetests

catkin_add_nosetests(test)

msg definition: int64 sum string first_name string last_name unint8 age uint32 score

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: Content of package.xml: <package format="2"> <name>beginner_tutorials</name> <version>0.0.0</version> <description>The first test package</description>

<maintainer email="alexander@hasenfratz-leloup.de">Alexander Hasenfratz</maintainer>

<license>GPLv3</license>

<buildtool_depend>catkin</buildtool_depend> <build_depend>roscpp</build_depend> <build_depend>rospy</build_depend> <build_depend>std_msgs</build_depend> <build_depend>message_generation</build_depend> <build_export_depend>roscpp</build_export_depend> <build_export_depend>rospy</build_export_depend> <build_export_depend>std_msgs</build_export_depend> <exec_depend>roscpp</exec_depend> <exec_depend>rospy</exec_depend> <exec_depend>std_msgs</exec_depend> <exec_depend>message_runtime</exec_depend>

<export>

</export> </package>

Content of CMakeLists.txt: cmake_minimum_required(VERSION 2.8.3) project(beginner_tutorials)

Compile as C++11, supported in ROS Kinetic and newer

add_compile_options(-std=c++11)

Find catkin macros and libraries

if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)

is used, also find other catkin packages

find_package(catkin REQUIRED COMPONENTS roscpp rospy std_msgs message_generation )

System dependencies are found with CMake's conventions

find_package(Boost REQUIRED COMPONENTS system)

Uncomment this if the package has a setup.py. This macro ensures

modules and global scripts declared therein get installed

See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html

catkin_python_setup()

#

Declare ROS messages, services and actions

#

To declare and build messages, services or actions from within this

package, follow these steps:

* Let MSG_DEP_SET be the set of packages whose message types you use in

your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).

* In the file package.xml:

* add a build_depend tag for "message_generation"

* add a build_depend and a run_depend tag for each package in MSG_DEP_SET

* If MSG_DEP_SET isn't empty the following dependency has been pulled in

but can be declared for certainty nonetheless:

* add a run_depend tag for "message_runtime"

* In this file (CMakeLists.txt):

* add "message_generation" and every package in MSG_DEP_SET to

find_package(catkin REQUIRED COMPONENTS ...)

* add "message_runtime" and every package in MSG_DEP_SET to

catkin_package(CATKIN_DEPENDS ...)

* uncomment the add_*_files sections below as needed

and list every .msg/.srv/.action file to be processed

* uncomment the generate_messages entry below

* add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

Generate messages in the 'msg' folder

add_message_files( FILES Num.msg )

Generate services in the 'srv' folder

add_service_files(

FILES

Service1.srv

Service2.srv

)

Generate actions in the 'action' folder

add_action_files(

FILES

Action1.action

Action2.action

)

Generate added messages and services with any dependencies listed here

generate_messages( DEPENDENCIES std_msgs )

#

Declare ROS dynamic reconfigure parameters

#

To declare and build dynamic reconfigure parameters within this

package, follow these steps:

* In the file package.xml:

* add a build_depend and a run_depend tag for "dynamic_reconfigure"

* In this file (CMakeLists.txt):

* add "dynamic_reconfigure" to

find_package(catkin REQUIRED COMPONENTS ...)

* uncomment the "generate_dynamic_reconfigure_options" section below

and list every .cfg file to be processed

Generate dynamic reconfigure parameters in the 'cfg' folder

generate_dynamic_reconfigure_options(

cfg/DynReconf1.cfg

cfg/DynReconf2.cfg

)

#

catkin specific configuration

#

The catkin_package macro generates cmake config files for your package

Declare things to be passed to dependent projects

INCLUDE_DIRS: uncomment this if your package contains header files

LIBRARIES: libraries you create in this project that dependent projects also need

CATKIN_DEPENDS: catkin_packages dependent projects also need

DEPENDS: system dependencies of this project that dependent projects also need

catkin_package(

INCLUDE_DIRS include

LIBRARIES beginner_tutorials

CATKIN_DEPENDS message_runtime roscpp rospy std_msgs

DEPENDS system_lib

)

#

Build

#

Specify additional locations of header files

Your package locations should be listed before other locations

include_directories(

include

${catkin_INCLUDE_DIRS} )

Declare a C++ library

add_library(${PROJECT_NAME}

src/${PROJECT_NAME}/beginner_tutorials.cpp

)

Add cmake target dependencies of the library

as an example, code may need to be generated before libraries

either from message generation or dynamic reconfigure

add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

Declare a C++ executable

With catkin_make all packages are built within a single CMake context

The recommended prefix ensures that target names across packages don't collide

add_executable(${PROJECT_NAME}_node src/beginner_tutorials_node.cpp)

Rename C++ executable without prefix

The above recommended prefix causes long target names, the following renames the

target back to the shorter version for ease of user use

e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node"

set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "")

Add cmake target dependencies of the executable

same as for the library above

add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

Specify libraries to link a library or executable target against

target_link_libraries(${PROJECT_NAME}_node

${catkin_LIBRARIES}

)

#

Install

#

all install targets should use catkin DESTINATION variables

See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html

Mark executable scripts (Python etc.) for installation

in contrast to setup.py, you can choose the destination

install(PROGRAMS

scripts/my_python_script

DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}

)

Mark executables and/or libraries for installation

install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node

ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}

LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}

RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}

)

Mark cpp header files for installation

install(DIRECTORY include/${PROJECT_NAME}/

DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}

FILES_MATCHING PATTERN "*.h"

PATTERN ".svn" EXCLUDE

)

Mark other files for installation (e.g. launch and bag files, etc.)

install(FILES

# myfile1

# myfile2

DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}

)

#

Testing

#

Add gtest based cpp test target and link libraries

catkin_add_gtest(${PROJECT_NAME}-test test/test_beginner_tutorials.cpp)

if(TARGET ${PROJECT_NAME}-test)

target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})

endif()

Add folders to be run by python nosetests

catkin_add_nosetests(test)

msg definition: int64 sum string first_name string last_name unint8 age uint32 scoreredoing it cause i screwed up

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: redoing it cause i screwed upContent of package.xml: <package format="2"> <name>beginner_tutorials</name> <version>0.0.0</version> <description>The first test package</description>

<maintainer email="xxx">xxx</maintainer>

<license>GPLv3</license>

<buildtool_depend>catkin</buildtool_depend> <build_depend>roscpp</build_depend> <build_depend>rospy</build_depend> <build_depend>std_msgs</build_depend> <build_depend>message_generation</build_depend> <build_export_depend>roscpp</build_export_depend> <build_export_depend>rospy</build_export_depend> <build_export_depend>std_msgs</build_export_depend> <exec_depend>roscpp</exec_depend> <exec_depend>rospy</exec_depend> <exec_depend>std_msgs</exec_depend> <exec_depend>message_runtime</exec_depend>

<export>

</export> </package>

click to hide/show revision 5
None

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: Content of package.xml: package.xml:

<?xml version="1.0"?>
<package format="2">
  <name>beginner_tutorials</name>
  <version>0.0.0</version>
  <description>The first test package</description>

package</description> <maintainer email="xxx">xxx</maintainer>

<license>GPLv3</license>

email="xxx">xxx</maintainer> <license>GPLv3</license> <buildtool_depend>catkin</buildtool_depend> <build_depend>roscpp</build_depend> <build_depend>rospy</build_depend> <build_depend>std_msgs</build_depend> <build_depend>message_generation</build_depend> <build_export_depend>roscpp</build_export_depend> <build_export_depend>rospy</build_export_depend> <build_export_depend>std_msgs</build_export_depend> <exec_depend>roscpp</exec_depend> <exec_depend>rospy</exec_depend> <exec_depend>std_msgs</exec_depend> <exec_depend>message_runtime</exec_depend>

<export>

<exec_depend>message_runtime</exec_depend> <export> </export> </package>

</package>

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: Content of package.xml:

<?xml version="1.0"?>
<package format="2">
  <name>beginner_tutorials</name>
  <version>0.0.0</version>
  <description>The first test package</description>

  <maintainer email="xxx">xxx</maintainer>

  <license>GPLv3</license>

  <buildtool_depend>catkin</buildtool_depend>
  <build_depend>roscpp</build_depend>
  <build_depend>rospy</build_depend>
  <build_depend>std_msgs</build_depend>
  <build_depend>message_generation</build_depend>
  <build_export_depend>roscpp</build_export_depend>
  <build_export_depend>rospy</build_export_depend>
  <build_export_depend>std_msgs</build_export_depend>
  <exec_depend>roscpp</exec_depend>
  <exec_depend>rospy</exec_depend>
  <exec_depend>std_msgs</exec_depend>
  <exec_depend>message_runtime</exec_depend>


  <export>

  </export>
</package>

Content of CMakeLists.txt:

cmake_minimum_required(VERSION 2.8.3)
project(beginner_tutorials)

## Compile as C++11, supported in ROS Kinetic and newer
# add_compile_options(-std=c++11)

## Find catkin macros and libraries
## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)
## is used, also find other catkin packages
find_package(catkin REQUIRED COMPONENTS
  roscpp
  rospy
  std_msgs
  message_generation
)

## System dependencies are found with CMake's conventions
# find_package(Boost REQUIRED COMPONENTS system)


## Uncomment this if the package has a setup.py. This macro ensures
## modules and global scripts declared therein get installed
## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html
# catkin_python_setup()

################################################
## Declare ROS messages, services and actions ##
################################################

## To declare and build messages, services or actions from within this
## package, follow these steps:
## * Let MSG_DEP_SET be the set of packages whose message types you use in
##   your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).
## * In the file package.xml:
##   * add a build_depend tag for "message_generation"
##   * add a build_depend and a run_depend tag for each package in MSG_DEP_SET
##   * If MSG_DEP_SET isn't empty the following dependency has been pulled in
##     but can be declared for certainty nonetheless:
##     * add a run_depend tag for "message_runtime"
## * In this file (CMakeLists.txt):
##   * add "message_generation" and every package in MSG_DEP_SET to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * add "message_runtime" and every package in MSG_DEP_SET to
##     catkin_package(CATKIN_DEPENDS ...)
##   * uncomment the add_*_files sections below as needed
##     and list every .msg/.srv/.action file to be processed
##   * uncomment the generate_messages entry below
##   * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

## Generate messages in the 'msg' folder
 add_message_files(
   FILES
   Num.msg
 )

## Generate services in the 'srv' folder
# add_service_files(
#   FILES
#   Service1.srv
#   Service2.srv
# )

## Generate actions in the 'action' folder
# add_action_files(
#   FILES
#   Action1.action
#   Action2.action
# )

## Generate added messages and services with any dependencies listed here
 generate_messages(
   DEPENDENCIES
   std_msgs
 )

################################################
## Declare ROS dynamic reconfigure parameters ##
################################################

## To declare and build dynamic reconfigure parameters within this
## package, follow these steps:
## * In the file package.xml:
##   * add a build_depend and a run_depend tag for "dynamic_reconfigure"
## * In this file (CMakeLists.txt):
##   * add "dynamic_reconfigure" to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * uncomment the "generate_dynamic_reconfigure_options" section below
##     and list every .cfg file to be processed

## Generate dynamic reconfigure parameters in the 'cfg' folder
# generate_dynamic_reconfigure_options(
#   cfg/DynReconf1.cfg
#   cfg/DynReconf2.cfg
# )

###################################
## catkin specific configuration ##
###################################
## The catkin_package macro generates cmake config files for your package
## Declare things to be passed to dependent projects
## INCLUDE_DIRS: uncomment this if your package contains header files
## LIBRARIES: libraries you create in this project that dependent projects also need
## CATKIN_DEPENDS: catkin_packages dependent projects also need
## DEPENDS: system dependencies of this project that dependent projects also need
catkin_package(
#  INCLUDE_DIRS include
#  LIBRARIES beginner_tutorials
#  CATKIN_DEPENDS message_runtime roscpp rospy std_msgs
#  DEPENDS system_lib
)

###########
## Build ##
###########

## Specify additional locations of header files
## Your package locations should be listed before other locations
include_directories(
# include
  ${catkin_INCLUDE_DIRS}
)

## Declare a C++ library
# add_library(${PROJECT_NAME}
#   src/${PROJECT_NAME}/beginner_tutorials.cpp
# )

## Add cmake target dependencies of the library
## as an example, code may need to be generated before libraries
## either from message generation or dynamic reconfigure
# add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Declare a C++ executable
## With catkin_make all packages are built within a single CMake context
## The recommended prefix ensures that target names across packages don't collide
# add_executable(${PROJECT_NAME}_node src/beginner_tutorials_node.cpp)

## Rename C++ executable without prefix
## The above recommended prefix causes long target names, the following renames the
## target back to the shorter version for ease of user use
## e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node"
# set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "")

## Add cmake target dependencies of the executable
## same as for the library above
# add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Specify libraries to link a library or executable target against
# target_link_libraries(${PROJECT_NAME}_node
#   ${catkin_LIBRARIES}
# )

#############
## Install ##
#############

# all install targets should use catkin DESTINATION variables
# See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html

## Mark executable scripts (Python etc.) for installation
## in contrast to setup.py, you can choose the destination
# install(PROGRAMS
#   scripts/my_python_script
#   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark executables and/or libraries for installation
# install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node
#   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark cpp header files for installation
# install(DIRECTORY include/${PROJECT_NAME}/
#   DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}
#   FILES_MATCHING PATTERN "*.h"
#   PATTERN ".svn" EXCLUDE
# )

## Mark other files for installation (e.g. launch and bag files, etc.)
# install(FILES
#   # myfile1
#   # myfile2
#   DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
# )

#############
## Testing ##
#############

## Add gtest based cpp test target and link libraries
# catkin_add_gtest(${PROJECT_NAME}-test test/test_beginner_tutorials.cpp)
# if(TARGET ${PROJECT_NAME}-test)
#   target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})
# endif()

## Add folders to be run by python nosetests
# catkin_add_nosetests(test)

Content of Num.msg:

int64 sum
string first_name
string last_name
unint8 age
uint32 score
click to hide/show revision 7
None

CMake Error in rosmsg tutorial

I am in the tutorial at CreateMsgAndSrv and got stuck at chapter 3. Running the command

$ rosmsg show beginner_tutorials/Num

got me the following

Unable to load msg [beginner_tutorials/Num]: Cannot locate message [unint8] in package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg', '/home/aha/catkin_ws/devel/share/beginner_tutorials/msg']]

and searching the web for a solution I stumbled upon a thread where someone had somewhat the same problem and said that he made a

catkin_make install

after the changes at the package.xml and CMakeLists.txt which I did not. But it made sense so I ran the command and then got the following error during the install process

CMake Error at /home/aha/catkin_ws/build/beginner_tutorials/cmake/beginner_tutorials-genmsg.cmake:3    (message):                                                                                             Could not find messages which                                                                          '/home/aha/catkin_ws/src/beginner_tutorials/msg/Num.msg' depends on.                                    Did you forget to specify generate_messages(DEPENDENCIES ...)?                                                         Cannot locate message [unint8] in  package [beginner_tutorials] with paths [['/home/aha/catkin_ws/src/beginner_tutorials/msg']]                                                                                    Call Stack (most recent call first): /opt/ros/kinetic/share/genmsg/cmake/genmsg-extras.cmake:307 (include) beginner_tutorials/CMakeLists.txt:71 (generate_messages)

But I followed the tutorial as it is written and did not forget to specify/uncomment "generate_messages". As I am a Newbie, I am kind of lost now and do not really know how to proceed. Can someone help me out?

System is Ubuntu 16.04 LTS, the ROS-Version is Kinetic and I added

source /opt/ros/kinetic/setup.bash

and

source ~/catkin_ws/devel/setup.bash

to my ~/.bashrc. Hope this sufficient information for the beginning...

EDIT1: Content of package.xml:

<?xml version="1.0"?>
<package format="2">
  <name>beginner_tutorials</name>
  <version>0.0.0</version>
  <description>The first test package</description>

  <maintainer email="xxx">xxx</maintainer>

  <license>GPLv3</license>

  <buildtool_depend>catkin</buildtool_depend>
  <build_depend>roscpp</build_depend>
  <build_depend>rospy</build_depend>
  <build_depend>std_msgs</build_depend>
  <build_depend>message_generation</build_depend>
  <build_export_depend>roscpp</build_export_depend>
  <build_export_depend>rospy</build_export_depend>
  <build_export_depend>std_msgs</build_export_depend>
  <exec_depend>roscpp</exec_depend>
  <exec_depend>rospy</exec_depend>
  <exec_depend>std_msgs</exec_depend>
  <exec_depend>message_runtime</exec_depend>


  <export>

  </export>
</package>

Content of CMakeLists.txt:

cmake_minimum_required(VERSION 2.8.3)
project(beginner_tutorials)

## Compile as C++11, supported in ROS Kinetic and newer
# add_compile_options(-std=c++11)

## Find catkin macros and libraries
## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)
## is used, also find other catkin packages
find_package(catkin REQUIRED COMPONENTS
  roscpp
  rospy
  std_msgs
  message_generation
)

## System dependencies are found with CMake's conventions
# find_package(Boost REQUIRED COMPONENTS system)


## Uncomment this if the package has a setup.py. This macro ensures
## modules and global scripts declared therein get installed
## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html
# catkin_python_setup()

################################################
## Declare ROS messages, services and actions ##
################################################

## To declare and build messages, services or actions from within this
## package, follow these steps:
## * Let MSG_DEP_SET be the set of packages whose message types you use in
##   your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).
## * In the file package.xml:
##   * add a build_depend tag for "message_generation"
##   * add a build_depend and a run_depend tag for each package in MSG_DEP_SET
##   * If MSG_DEP_SET isn't empty the following dependency has been pulled in
##     but can be declared for certainty nonetheless:
##     * add a run_depend tag for "message_runtime"
## * In this file (CMakeLists.txt):
##   * add "message_generation" and every package in MSG_DEP_SET to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * add "message_runtime" and every package in MSG_DEP_SET to
##     catkin_package(CATKIN_DEPENDS ...)
##   * uncomment the add_*_files sections below as needed
##     and list every .msg/.srv/.action file to be processed
##   * uncomment the generate_messages entry below
##   * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

## Generate messages in the 'msg' folder
 add_message_files(
  FILES
  Num.msg
 )

## Generate services in the 'srv' folder
# add_service_files(
#   FILES
#   Service1.srv
#   Service2.srv
# generate_messages(
 DEPENDENCIES
 std_msgs
)

## Generate actions in the 'action' folder
# add_action_files(
#   FILES
#   Action1.action
#   Action2.action
# )

## Generate added messages and services with any dependencies listed here
 generate_messages(
   DEPENDENCIES
   std_msgs
 )

################################################
## Declare ROS dynamic reconfigure parameters ##
################################################

## To declare and build dynamic reconfigure parameters within this
## package, follow these steps:
## * In the file package.xml:
##   * add a build_depend and a run_depend tag for "dynamic_reconfigure"
## * In this file (CMakeLists.txt):
##   * add "dynamic_reconfigure" to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * uncomment the "generate_dynamic_reconfigure_options" section below
##     and list every .cfg file to be processed

## Generate dynamic reconfigure parameters in the 'cfg' folder
# generate_dynamic_reconfigure_options(
#   cfg/DynReconf1.cfg
#   cfg/DynReconf2.cfg
# )

###################################
## catkin specific configuration ##
###################################
## The catkin_package macro generates cmake config files for your package
## Declare things to be passed to dependent projects
## INCLUDE_DIRS: uncomment this if your package contains header files
## LIBRARIES: libraries you create in this project that dependent projects also need
## CATKIN_DEPENDS: catkin_packages dependent projects also need
## DEPENDS: system dependencies of this project that dependent projects also need
catkin_package(
#  INCLUDE_DIRS include
#  LIBRARIES beginner_tutorials
#  CATKIN_DEPENDS message_runtime roscpp rospy std_msgs
#  DEPENDS system_lib
)

###########
## Build ##
###########

## Specify additional locations of header files
## Your package locations should be listed before other locations
catkin_package()

include_directories(
# include
  ${catkin_INCLUDE_DIRS}
)

## Declare a C++ library
# add_library(${PROJECT_NAME}
#   src/${PROJECT_NAME}/beginner_tutorials.cpp
# )

## Add cmake target dependencies of the library
## as an example, code may need to be generated before libraries
## either from message generation or dynamic reconfigure
# add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Declare a C++ executable
## With catkin_make all packages are built within a single CMake context
## The recommended prefix ensures that target names across packages don't collide
# add_executable(${PROJECT_NAME}_node src/beginner_tutorials_node.cpp)

## Rename C++ executable without prefix
## The above recommended prefix causes long target names, the following renames the
## target back to the shorter version for ease of user use
## e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node"
# set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "")

## Add cmake target dependencies of the executable
## same as for the library above
# add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Specify libraries to link a library or executable target against
# target_link_libraries(${PROJECT_NAME}_node
#   ${catkin_LIBRARIES}
# )

#############
## Install ##
#############

# all install targets should use catkin DESTINATION variables
# See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html

## Mark executable scripts (Python etc.) for installation
## in contrast to setup.py, you can choose the destination
# install(PROGRAMS
#   scripts/my_python_script
#   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark executables and/or libraries for installation
# install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node
#   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark cpp header files for installation
# install(DIRECTORY include/${PROJECT_NAME}/
#   DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}
#   FILES_MATCHING PATTERN "*.h"
#   PATTERN ".svn" EXCLUDE
# )

## Mark other files for installation (e.g. launch and bag files, etc.)
# install(FILES
#   # myfile1
#   # myfile2
#   DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
# )

#############
## Testing ##
#############

## Add gtest based cpp test target and link libraries
# catkin_add_gtest(${PROJECT_NAME}-test test/test_beginner_tutorials.cpp)
# if(TARGET ${PROJECT_NAME}-test)
#   target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})
# endif()

## Add folders to be run by python nosetests
# catkin_add_nosetests(test)

Content of Num.msg:

int64 sum
string first_name
string last_name
unint8 age
uint32 score