mgruhler's profile - activity

Hi all,

The question I have is actually pretty short:

Is there a way to run roslaunch checks in an install space?

Let me give you a short rationale of my current thoughts:

In ROS, there are three different types of tests you can have (afaik):

1. Unit Tests (using gtest or unittest) for testing functionality
2. rostests for testing ROS Nodes and other ROS stuff (e.g. publishers/subscribers)
3. roslaunch checks (very bottom of the page) using roslaunch_add_file_check

IMO, 1. and 2. should be run in the build/devel space, as those test targets and launchfiles should not be installed (even though there are some packages doing this, e.g. gazebo_plugins/test/set_model_state_test, which then does fail as the required test executable is not, and cannot be, installed.)

However, for 3. it would be beneficial to check this in the install space as well. This would help to detect missing install tags of executables, launch files and yaml files.

How can I achieve this? catkin_make run_tests is always running in devel/build/src.

This is basically a follow-up to #q285772 During my use of ROS, I adopted to call the following line on any (C++) target that I try to build:

add_dependencies(MYTARGET ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

using ${${PROJECT_NAME}_EXPORTED_TARGETS} only when building msg/srv/actions/dynamic_reconfigure in the package I am workin on, and ${catkin_EXPORTED_TARGETS} always.

This is a constant source of error, as well in the above cited question. Thus, I always adviced People to follow the same strategy.

In a comment to the above question, @gvdhoorn described the approach to always use ${catkin_EXPORTED_TARGETS} as "cargo-cultish" (nice term :-D)

re: adding catkin_EXPORTED_TARGETS: that's a bit cargo cult-ish. I wouldn't add that unless it's needed.

Checking the documentation (e.g. wiki, catkin docs 1 or catkin docs 2) I'm not quite sure when to use it.

The wiki suggest that:

If you have a target which (even transitively) depends on some other target that needs messages/services/actions to be built, you need to add an explicit dependency on target catkin_EXPORTED_TARGETS, so that they are built in the correct order. This case applies almost always, unless your package really doesn't use any part of ROS. Unfortunately, this dependency cannot be automatically propagated. (some_target is the name of the target set by add_executable()):

add_dependencies(some_target ${catkin_EXPORTED_TARGETS})

This is basically saying: You Need it always (solution 1).

The catkin docs rather say, if you Need any msg/srv/action/dynamic_reconfigure from another catkin package (solution 2).

Which is the right way to go? I'd be happy for any insights.

Can you answer the questions in the comments posted above?

This is a standard C++ error, see also error: ld returned 1 exit status. Basically, you forgot to link to the library de

what does it mean like undefined reference? straight dump of the console output: srinaath@srinaath-desktop:~/catkin_ws3

happens to all of us :-) Please accept the answer by clicking the checkmark next to it, thanks.

Well, I guess it has to do with trying to advertise using a subscriber :-) It should be subscribe... sub{nh.subscribe(

Well, I guess it has to do with trying to advertise using a subscriber :-) It should be subscribe... ub{nh.advertise&l

It would probably help if you direct us to the installation page where you got this from (link!) and show which commands

It depends a bit which language you are using (you say "imported" and numpy, so I guess python). If you are using pyth

see edit above.

It depends a bit which language you are using (you say "imported" and numpy, so I guess python). If you are using pyth

It depends a bit which language you are using (you say "imported" and numpy, so I guess python). If you are using pyth

Funny, on noetic and using rospy / catkin_build I cannot reproduce this. It is pointing to the src directory for me. Wha

Funny, on noetic and using rospy / catkin_build I cannot reproduce this. It is pointing to the src directory for me. Wha

@ssfs have fun :-) If this solves it, please consider to self-answer and accept (or close as answered and correct). Than

For some background on why the foxy-future branch might solve this issue, spen about an hour of your time to read throug

@Masoum great and thanks for the update.

Have you looked into the existing Q&As for that? There are quite a lot that talk about this. Though, admittedly, the

Hi I have an error right now, please solve this error version ubuntu 18.04 ros melodic Hello. I am trying to run Doos

This question #q383764 by the same user seems to give some background. @Masoum I suggest you merge the two questions and