Cannot import custom service

edit

Hi everyone!

I made a custom service following this tutorial: http://wiki.ros.org/ROS/Tutorials/Cre...

I edited the CMakeLists.txt and package.xml files as instructed.

I can see my service when I run rossrv list, but the .py file does not appear in devel/lib/python2.7/dist-packages/my_package/srv. The full path exists, but the srv directory is empty.

When I try and import the service in my python file using

from my_package.srv import my_service

I get the error:

ImportError: No module named srv

Here is my CMakeLists.txt file for your review:

cmake_minimum_required(VERSION 2.8.3)
project(my_package)


find_package(catkin REQUIRED COMPONENTS
  geometry_msgs
  nav_msgs
  roscpp
  rospy
  std_msgs
  message_generation
)


add_service_files(
  FILES
  my_service.srv
)


 generate_messages(
   DEPENDENCIES
   geometry_msgs   nav_msgs   std_msgs  
 )

catkin_package(
  CATKIN_DEPENDS geometry_msgs nav_msgs roscpp rospy std_msgs message_runtime
)


include_directories(
  ${catkin_INCLUDE_DIRS}
)

Any help?

Ubuntu 12.04 ROS Hydro