appdesigner won't launch on Linux

When I try to launch appdesigner I get the error:

Unable to start App Designer due to an internal error.

MATLABWindow application failed to launch. Unable to launch the MATLABWindow application

I am on R2019a, but error also exists on R2018b

When I try:

>> cd(matlabroot)
>> ! bin/glnxa64/MATLABWindow

I get a MATLABWindow appear just fine!

No idea where to go from here.

Further testing, the same error somes up when I try and open Simulink, but that appears to have a fallback. The Add-Ons Button doesn't work either.

Answer 1

[Kylie MacFarquharson]

I (for some reason) needed libselinux. selinux doesn't have to be enabled in the kernel so it's an easy fix.