How to use a service message defined in another package?

Course Support ROS Basics In 5 Days (C++)
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1

Hi,
I created a service message called MySrv.srv on package my_custom_msg. This service message works fine on node inside the package my_custom_msg but when I want to use it service message on another package (test_custom_msg) a have the following error message:

 fatal error: my_custom_msg/MySrv.h: No such file or directory #include "my_custom_msg/MySrv.h"

Thanks for your help! :smiley:

2

Hi,

To use a service message defined in another package (let’s call that another_package), you need to add another_package as a dependency when creating the new package (say new_package):

catkin_create_pkg new_package roscpp [...other_dependencies] another_package

If you did not do this while creating new_package, it’s better to just recreate it and include another_package as a dependency. The other way to correct this error is just too cumbersome.

Cheers!

Rodrigo