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2013-07-23 02:54:50 -0500 | commented answer | roslaunch error - "ERROR: cannot launch node of type" Thanks marvin! Actually regenerating the package made the difference. I could not find the factor that was making the difference. I had already tried erasing devel and install folders. Can someone explain how can regenerating the package make the difference? |
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2013-07-16 12:31:28 -0500 | asked a question | roslaunch error - "ERROR: cannot launch node of type" When using a launch file in groovy catkin package, roslaunch reports an error: ERROR: cannot launch node of type [nao_driver/nao_camera_both.py]: nao_driver
ROS path [0]=/opt/ros/groovy/share/ros
ROS path [1]=/home/ludo/workspace/catkin_ws/install/share
ROS path [2]=/home/ludo/workspace/catkin_ws/install/stacks
ROS path [3]=/home/ludo/workspace/catkin_ws/src
ROS path [4]=/opt/ros/groovy/share
ROS path [5]=/opt/ros/groovy/stacks
The contents of the launch file <node pkg="nao_driver" type="nao_camera_both.py" name="nao_camera_both" required="true" args="--pip=$(arg nao_ip) --pport=$(arg nao_port) fps=5" output="screen">
<param name="camera_switch" type="int" value="1"/>
<param name="fps" type="int" value="1"/>
<!--
Image quality constants
k960p = 3 # 1280*960
k4VGA = 3 # 1280*960
kVGA = 2 # 640*480
kQVGA = 1 # 320*240
kQQVGA = 0 # 160*120
-->
<param name="quality" type="int" value="3"/>
<param name="topCamParams" type="string" value="package://morris_simulation/config/topCamCalibSim.yml"/>
<param name="bottomCamParams" type="string" value="package://morris_simulation/config/bottomCamCalib.yml"/>
</node>
rosrun nao_driver nao_camera_both.py works well though. |
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2013-01-18 10:42:30 -0500 | asked a question | rosmake tf2 osx fails When I try to rosmake -a in osx Mountain Lion, it fails in tf2 package. I am following the installation tutorial ros.org/wiki/groovy/Installation/OSX/Homebrew/Source, with the exception that I am compiling rviz direclty from git devel version. I get the following output. mkdir -p bin cd build && cmake -Wdev
-DCMAKE_TOOLCHAIN_FILE=/Users/mllofriu/ros_catkin_ws/install_isolated/share/ros/core/rosbuild/rostoolchain.cmake
.. CMake Error at
/usr/local/Cellar/cmake/2.8.10.1/share/cmake/Modules/Platform/Darwin.cmake:190
(message):
CMAKE_OSX_DEPLOYMENT_TARGET is '10.6'
but CMAKE_OSX_SYSROOT: "" is not set to a MacOSX SDK with a
recognized version. Either set
CMAKE_OSX_SYSROOT to a valid SDK or
set CMAKE_OSX_DEPLOYMENT_TARGET to
empty. Call Stack (most recent call
first):
/usr/local/Cellar/cmake/2.8.10.1/share/cmake/Modules/CMakeSystemSpecificInformation.cmake:36
(include) -- Configuring incomplete, errors occurred! make: * [all] Error 1 |
2013-01-15 10:54:45 -0500 | answered a question | Building cv_bridge with catkin fails I have the same error here. I attach the -j1 output (I am not allowed to comment). ==> Processing catkin package: 'cv_bridge'
==> Creating build directory: 'build_isolated/cv_bridge'
==> Building with env: '/Users/mllofriu/ros_catkin_ws/install_isolated/env.sh'
==> cmake /Users/mllofriu/ros_catkin_ws/src/cv_bridge -DCATKIN_DEVEL_PREFIX=/Users/mllofriu/ros_catkin_ws/devel_isolated/cv_bridge -DCMAKE_INSTALL_PREFIX=/Users/mllofriu/ros_catkin_ws/install_isolated
==> make -j1 in '/Users/mllofriu/ros_catkin_ws/build_isolated/cv_bridge'
Scanning dependencies of target cv_bridge
[ 50%] Building CXX object src/CMakeFiles/cv_bridge.dir/cv_bridge.cpp.o
Linking CXX shared library /Users/mllofriu/ros_catkin_ws/devel_isolated/cv_bridge/lib/libcv_bridge.dylib
ld: warning: directory not found for option '-L/Users/mllofriu/ros_catkin_ws/install_isolated/share/OpenCV/3rdparty/lib'
[ 50%] Built target cv_bridge
Scanning dependencies of target cv_bridge_boost
[100%] Building CXX object src/CMakeFiles/cv_bridge_boost.dir/module.cpp.o
Linking CXX shared library /Users/mllofriu/ros_catkin_ws/devel_isolated/cv_bridge/lib/python2.7/site-packages/cv_bridge/boost/cv_bridge_boost.dylib
ld: warning: directory not found for option '-L/Users/mllofriu/ros_catkin_ws/install_isolated/share/OpenCV/3rdparty/lib'
Undefined symbols for architecture x86_64:
"_PyErr_SetString", referenced from:
failmsg(char const*, ...) in module.cpp.o
"_PyExc_TypeError", referenced from:
failmsg(char const*, ...) in module.cpp.o
"_PyImport_ImportModule", referenced from:
init_module_cv_bridge_boost() in module.cpp.o
"_PyInt_FromLong", referenced from:
boost::python::to_python_value<int const&>::operator()(int const&) const in module.cpp.o
"_PyInt_Type", referenced from:
boost::python::to_python_value<int const&>::get_pytype() const in module.cpp.o
"_PyObject_AsWriteBuffer", referenced from:
convert_to_CvMat(_object*, CvMat**, char const*) in module.cpp.o
"_PyObject_CallObject", referenced from:
FROM_CvMat(CvMat*) in module.cpp.o
"_PyObject_GetAttrString", referenced from:
FROM_CvMat(CvMat*) in module.cpp.o
"_PyString_AsString", referenced from:
convert_to_CvMat(_object*, CvMat**, char const*) in module.cpp.o
"_Py_BuildValue", referenced from:
FROM_CvMat(CvMat*) in module.cpp.o
"__Py_NoneStruct", referenced from:
boost::python::api::object::object() in module.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [/Users/mllofriu/ros_catkin_ws/devel_isolated/cv_bridge/lib/python2.7/site-packages/cv_bridge/boost/cv_bridge_boost.dylib] Error 1
make[1]: *** [src/CMakeFiles/cv_bridge_boost.dir/all] Error 2
make: *** [all] Error 2
<== Failed to process package 'cv_bridge':
Command '/Users/mllofriu/ros_catkin_ws/install_isolated/env.sh make -j1' returned non-zero exit status 2
Command failed, exiting.
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