Crazyswarm installation issues

[DavidGMcIntosh]

I'm attempting to follow the setup instructions at https://crazyswarm.readthedocs.io/en/latest/installation.html#installation, but I am reaching problems at step 3. ROS is installed and fully functional, but when attempting to install the dependencies, I always get an error message stating that it is 'Unable to locate package gcc-arm-embedded'. I have tried to install this dependency elsewhere, but no matter what I do to download it I am met with the same error. I have tried ignoring this error, but although I am still able to run the ./build.sh command, the tests to verify it fail ('$CSW_PYTHON -m pytest' is met with "No module named pytest"). Does anyone know a way to use crazyswarm without this dependency, a foolproof way to install it, or something else that may be causing this issue? Thanks!
[Pictures of errors attached, using Xubuntu 20.04, ROS Noetic]

[jpreiss]

You don't need to rebuild the firmware unless you have modified it. We will remove that from build.sh eventually. See #391

[DavidGMcIntosh]

Installed the new patch, everything seems functional so far. Finished setup and began configuration, and I'm currently stuck on step 2.2. Now, when i try to run the given code it tells me that there is no such code as 'prebuilt/cradio.bin', but I can't figure out where this would be installed from. Any thoughts?

[jpreiss]

Just now we removed the crazyflie2-nrf-firmware and crazyradio-firmware submodules from the Crazyswarm repo since we no longer use custom versions. But it looks like to upgrade the radio firmware, you will need to follow the instructions at https://www.bitcraze.io/documentation/repository/crazyradio-firmware/master/building/programming/ which still require cloning the firmware repository yourself.

[jpreiss]

@whoenig this seems kind of clunky. I was hoping the GUI client had a tool for updating radio firmware, but apparently not.

[DavidGMcIntosh]

I'm a little confused - does this mean it's alright to work with a version 0.53 Crazyradio, or should I still try to upgrade to version 99.55?

[whoenig]

@jpreiss Upgrading the radio is not as safe as the other part since it is possible to destroy the bootloader (recovery in this case requires some soldering). That's why there is no prominent GUI tool.
@DavidGMcIntosh You will need to work with an upgraded radio firmware.