Services quiz section 4

[ROxX]

I do not understand the error message on this file. I believe I need to modify the CMake and XML files for the package -service_quiz_srv. This is the error message:

[martinetbon]

I think you are missing the

find_package(rosidl_default_generators REQUIRED)

[girishkumar.kannan]

Hi @ROxX ,

Along with what @martinetbon has indicated, you must also add another line in your CMakeLists.txt file.

This line goes under # find dependencies section:

find_package(rosidl_default_generators REQUIRED)

This line goes inside the rosidl_generate_interfaces(...) block:

rosidl_generate_interfaces(${PROJECT_NAME}
  "srv/Spin.srv"
  DEPENDENCIES std_msgs
)

You also need to add the following 3 lines in your package.xml, after the <depend> lines:

  <build_depend>rosidl_default_generators</build_depend>
  <exec_depend>rosidl_default_runtime</exec_depend>
  <member_of_group>rosidl_interface_packages</member_of_group>

Make sure you note down these steps for your future reference!

Regards,
Girish

[ROxX]

Thank you the package passes the colcon build successfully now.

[girishkumar.kannan]

Hi @ROxX ,

Glad to know your issue is solved.

Please mark the relevant post as the “Solution” so this issue can be marked as closed.

Regards,
Girish