When I run Colcon build my applications build succeeds but once I submit my Quiz for evaluation the Grade Bot fails because of a build error. If I then run Colcon build my application throughs errors and is unable to build. I have tried multiple fixes but non seems to work and only have two attempts left. My applications also runs as needed.
It the actions quiz unit 7.9
@malcolm-maurice.holm
This is happening because actions_quiz_msg is not properly set up as a dependency of actions_quiz.
When properly set up, actions_quiz_msg would be compiled first (if not already compiled) when you try to compile actions_quiz.
It worked locally for you because you are manually compiling actions_quiz_msg before compiling actions_quiz, but it should work as described above.
When you submit to the gradebot, it removes the compilation directories and tries to compile again. This is normal behavior; it was designed to detect dependency problems like this one. It also helps to detect when an unapproved package was used for the quiz.
I’m adding two more attempts for you to resolve this dependency issue, which is crucial part of building ROS-based applications.
Good day @bayodesegun
Thank you for the reply. Do I understand correctly that when you compile package actions_quiz should package actions_quiz_msg compile also( both with the same bash script colcon build --packages etc) ?
I have actions_quiz_msg as a packages in the cmake and package.xml. Is this what you are refering to?
Thank you for the support
Good day @malcolm-maurice.holm
I meant that when you try to compile actions_quiz alone, it should trigger the compilation of actions_quiz_msg. That’s how you know that actions_quiz_msg has been properly set up as a dependency of actions_quiz.
Thank You
It was a small spelling error in my .xml file. Thank you for you assistance