Build error

[mwlock]

Hey all !

I am facing the following error when running colcon build --symlink-install

For context, I am running ROS humble on Ubuntu 22.04

CMake Error at /opt/ros/humble/share/ament_cmake_python/cmake/ament_python_install_package.cmake:106 (add_custom_target):
  add_custom_target cannot create target
  "ament_cmake_python_symlink_choirbot_interfaces" because another target
  with the same name already exists.  The existing target is a custom target
  created in source directory
  "/home/matt/crazychoir_ws/src/crazychoir/ChoiRbot/choirbot_interfaces".
  See documentation for policy CMP0002 for more details.
Call Stack (most recent call first):
  /opt/ros/humble/share/ament_cmake_python/cmake/ament_python_install_package.cmake:39 (_ament_cmake_python_install_package)
  CMakeLists.txt:18 (ament_python_install_package)


CMake Error at /opt/ros/humble/share/ament_cmake_python/cmake/ament_python_install_package.cmake:141 (add_custom_target):
  add_custom_target cannot create target
  "ament_cmake_python_build_choirbot_interfaces_egg" because another target
  with the same name already exists.  The existing target is a custom target
  created in source directory
  "/home/matt/crazychoir_ws/src/crazychoir/ChoiRbot/choirbot_interfaces".
  See documentation for policy CMP0002 for more details.
Call Stack (most recent call first):
  /opt/ros/humble/share/ament_cmake_python/cmake/ament_python_install_package.cmake:39 (_ament_cmake_python_install_package)
  CMakeLists.txt:18 (ament_python_install_package)

Cheers!

[mwlock]

Apparently ament_python_install_package and rosidl_generate_interfaces cannot be run in the same package.... Nobody else faced this issue? ros2/rosidl_python#141

[dbortoluzzi]

I think the project doesn't support ROS2 Humble at the moment. I have same your problems some months ago.

[lorenzopichierri]

Hi matthew-william-lock! As dbortoluzzi suggested, the project runs on ROS 2 Foxy. However, you are welcome to submit pull requests to the humble-devel branch if you have any updates or improvements to contribute. Your input is appreciated, and feel free to reach out if you have any questions or need further clarification!