Problems building Groot about groot HOT 8 CLOSED

i have problem with ros2 run groot Groot . the package was not found

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@magi-dalmau I put in a PR to address this if you wanted to test it.

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@pauldinh I'm having the same problem. I've tried your fix, but I'm still getting a linker error.

I've tried installing behaviortree-cpp with apt (ie: apt-get install ros-melodic-behavior-tree-cpp) and building it with catkin.

edit:

Here is the partial output of catkin build --get-env groot:

typeset -x ROS_DISTRO=melodic
typeset -x LESSOPEN='| /usr/bin/lesspipe %s'
typeset -x PATH=/workspace/install/bin:/opt/ros/melodic/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
typeset -x HOME=/root
typeset -x LD_LIBRARY_PATH=/workspace/install/lib:/opt/ros/melodic/lib:/workspace/devel/lib

Inside /workspace/install/lib I have libbehaviortree_cpp_v3.so.

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@danem Can you verify what target(s) you're getting the linker error on? The possible targets are:

• behavior_tree_editor
• Groot
• editor_test
• replay_test

The output of catkin build VERBOSE=1 could be helpful if you can / are allowed to post it.

Also, I neglected to mention my environment:

• 18.04 + ROS Melodic
• catkin tools (and not catkin_make) configured to use an install space [0]
• compiling BehaviorTree.CPP from source

(my catkin build --get-env groot looks similar to yours)

I'm compiling BehaviorTree.CPP from source because the latest ROS Melodic sync does not have this commit. If I attempt to compile Groot using ros-melodic-behaviortree-cpp-v3, I get an error regarding flatbuffers/stl_emulation.h. That said, I temporarily modified the include_directories for Groot so it could find flatbuffers/stl_emulation.h (on master), got the linker error(s), switched to the PR branch, and did a catkin clean && catkin build and everything compiled successfully. I then uninstalled the ros-melodic-behaviortree-cpp-v3 package and repeated the same with BehaviorTree.CPP from source (and undid the temporary include_directories change). Got the linker errors on master but they compiled on the PR branch.

I wouldn't be surprised if I'm missing something but I can't seem to reproduce the error on my end.

[0] I noticed I cannot do rosrun groot Groot using the install space. BehaviorTree.CPP is not configured to use the install space from what I can tell. But all of the above applies when the workspace is configured for devel space.

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@pauldinh thanks for the work.

I've commented out the CompileTest( ... ) lines found in Groot/test/CmakeLists.txt and that fixed the build. So it seems both replay_test and editor_test were the problems.

I'm also finding that the Groot executable isn't placed in the install space, but instead in devel/lib/groot.

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Great, glad it worked out for you!

The changes in the commit should have addressed the tests as well, not sure why you had to go through the trouble of commenting it out. If you can, a verbose log of your catkin build would be helpful.

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Here is the output:

build.make.033.log

It looks like it cannot link the behaviortree_cpp_v3 library. Perhaps it's because I'm not using the BehaviorTree submodule?

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fixed, thanks to @pauldinh

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