Implenting py_trees issues.

[RobertoHernandezjr]

I want to use py_trees in my ROS2 (Foxy) project. I need to run everything locally, having issues running/installing the examples in the documentation. I am using a M2 mac, running Ubuntu 20.04 in parrallels. Addtionally I think im missing how to integrate py_trees_ros in.

Installation:

• Ubuntu 20.04
• py_trees
• py_trees_js
• MISSING STEP py_trees_ros
• ros-foxy-py-trees-ros-tutorials
• ros-foxy-py-trees-ros-viewer

When running tutorial: ros2 launch py_trees_ros_tutorials tutorial_eight_dynamic_application_laoding_launch.py
file 'tutorial_eight_dynamic_application_laoding_launch.py' was not found in the share directory of package 'py_trees_ros_tutorials' which is at '/opt/ros/foxy/share/py_trees_ros_tutorials'

When running git clone https://github.com/splintered-reality/py_trees_js
cd py_trees_js
. ./virtualenv.bash
py-trees-demo-viewer

I get

qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
Could not initialize GLX
./scripts/py-trees-devel-viewer: line 45: 13733 Aborted  ```

[stonier]

Didn't quite get there for the foxy release, so not suprised to hear there are problems. I've skipped directly through to fixing everything for Humble and Rolling

tutorial_eight_dynamic_application_laoding_launch.py

^This one was a typo that I've subsequently fixed in the docs, should be loading, not laoding.

MISSING STEP py_trees_ros

You could try dropping the release/2.1.x branch (don't use the devel branch, it's bugfixed for humble and beyond) into your development workspace and see if that works out of the box without issues. Create individual issues if and where you need bugs fixed.

Could not initialize GLX
./scripts/py-trees-devel-viewer: line 45: 13733 Aborted ```

Does the py-trees-demo-viewer work? The py-trees-devel-viewer script is just for development debugging, likely to have some issues and not contained or supported in the release.

[RobertoHernandezjr]

Yes ended doing a clean install on the OS and I actually saw the typo before you fixed it. Afterwards i got everything running and no more issues. Thank you. I ended installing trough the terminal instead of the pypi, and somehow got it to work.

Is it possible to update the local installation instructions using the terminal? I think this is how i got everything to work but apt ended fixing and installing the correct dependencies. Not sure if this the correct order or missing something for the 2.1

sudo apt-get install ros-foxy-py-trees
sudo apt-get install ros-foxy-py-trees-js
sudo apt-get install ros-foxy-py-trees-ros-viewer
sudo apt-get install ros-foxy-py-trees-ros-tutorials

[stonier]

Aye, going via pypi still requires many x11 debs to be installed which I'm now trying to cover better via a devcontainer.

Nonetheless, a full ros installation should always be via the ros debs as you have done. I've explicitly added apt install instructions to the py_trees_ros/README.

[RobertoHernandezjr]

Thank you, should be very helpful for people in the future, or myself when I come back 6 months later and forgot how to get everything running agian.