📚 Backward incompatibility: Updates for px4 firmware v1.13.2

[spurnvoj]

This is an important notice for everyone using our system. In the case the MRS system was/is already locally built on your system, you need to do the following steps to have the system properly working:

1. Remove uav_core and simulation repositories and clone them again.
2. Clean the workspace containing uav_core and simulation repositories.
3. Remove all folders sitl_uav$ in ~/.ros folder.
4. Call the installation script in the uav_core repository.
5. Build your workspace again.

[nrlhozkan]

Hello. When I do that on my computer, files inside mrs_workspace/simulation/ ros_packages do not have folders like px4_firmware and vs. any longer. But, Inside git, the probably old folders, are still there. What should I do?

[spurnvoj]

@nrlhozkan did you follow the first point?

Remove uav_core and simulation repositories and clone them again.

If yes, have you called gitman install in the root of the repositories? We are using gitman for managing the git repositories https://ctu-mrs.github.io/docs/software/gitman.html.

[nrlhozkan]

I have one workspace and one git folder. I delete, uav_core and simulation in src in my workspace. Then clone again in src. Then I did catkin clean to clean the workspace. Later delete sitl_uav in .ros. After that call the installation.sh in uav_core/installation. Finally build my workspace with catkin build. I did not use gitman install.

[spurnvoj]

If you installed our system using the native way as it is described in README here https://github.com/ctu-mrs/mrs_uav_system#native-installation-not-recommended, the folders in workspace/src should be symlinks to the git folder. Therefore, you can delete simulation and uav_core folders in the workspace and the same files in the git folder. Then, go into mrs_uav_system folder in ~/git, update it, and call the install script:

cd ~/git/mrs_uav_system
git checkout master
git pull
./install.sh -g ~/git

This should properly download and compile everything.

[klaxalk]

And if you cloned uav_core or simulation manually, then you need to run gitman install to download the submodules. That will populate the respective uav_core/ros_packages and simulation/ros_packages folders.

[matemat13]

If the install.sh script in uav_core fails with an error

ImportError: cannot import name 'OS_RASPBIAN' from 'rospkg.os_detect' (/usr/local/lib/python3.8/dist-packages/rospkg/os_detect.py)

see issue #154 for a solution.

[WingRS]

When calling the install script in uav_core, I have faced an issue with some un-updated IP addresses, and maybe we could add sudo apt update in the install script. This is a simple issue but might confuse some people

[petrapa6]

I also recommend to run the installation script in the simulation repository after step 4. It installed some missing dependencies for px4.