Python simGetImages throws unknown exception

[mmuetert]

Hello,

I am trying to run the segmentation.py example from the PythonClient folder in airsim. When I try to run the script, it runs fine until the line

#get segmentation image in various formats
responses = client.simGetImages([
airsim.ImageRequest("0", airsim.ImageType.Segmentation, True), #depth in perspective projection
airsim.ImageRequest("0", airsim.ImageType.Segmentation, False, False)]) #scene vision image in uncompressed RGBA array
print('Retrieved images: %d', len(responses))

where I get the error

"msgpackrpc.error.RPCError: rpclib: function 'simGetImages' (called with 3 arg(s)) threw an exception. The exception is not derived from std::exception. No further information available."

I had the same error in a custom script I was writing so I decided to test the issue with the provided python script. I test the c++ version of HelloDrone and it runs simGetImages just fine.

I am running python3.6 on Ubuntu 20.04. My python packages are up to date and my Airsim install should be as well. I very recently upgraded from Ubuntu 18.04 to Ubuntu 20.04, but I never ran the python versions on 18.04, so I can't say if they worked before the upgrade.

Any help would be appreciated!

[Frederik-Hartmann]

Hi @mmuetert.
The Code above works fine fine for me. Are you sure "0" is your camera name?

[zimmy87]

This might be related to #4120, can you apply the fix in #4321 and see if that fixes the issue for you?