I am getting this error with on my macbook pro running Catalina:
DllNotFoundException: /Users/bokken/build/output/Unity-Technologies/mono/external/buildscripts/add_to_build_results/monodistribution/lib/libgdiplus.dylib
System.Drawing.GDIPlus…cctor () (at <04abc238e1e64b378e01047493bf1e72>:0)
Rethrow as TypeInitializationException: The type initializer for ‘System.Drawing.GDIPlus’ threw an exception.
I tried the fixes from this older thread: here
And, running this in terminal: brew install mono-libgdiplus
Apparently, this is a long running problem with Unity. Any other suggestions or thoughts would be much appreciated.