Static fields are not yet supported on user defined types

[Drelaky]

Describe the bug in detail:
When I try to create static, variables, or classes or functions, unfortunately I keep getting this error. And I've never seen anything like this. Why won't it work? Or what am I doing wrong please help me.

Provide steps/code to reproduce the bug:

Expected behavior:
Functioning static variables and classes..

Additional Information:
unity version: 2022.3.22f1
SDK version: 3.7.5

[Nestorboy]

There's no mutual or shared memory between Udon programs when it comes to the Udon VM, so there's no way to declare a globally accessible variable that's synced between the different U#/Udon Behaviours in the project. This is not a bug but rather a limitation of the underlying VM. There are workarounds, but all of them require you to do some initialization either at runtime or build time to set up the shared references to something like a pseudo-singleton or array since they are passed by reference.

If you are interested in doing something like a singleton, there's a pretty nice package called VR RefAssist by LiveDimensions that adds some nice U# compatible attributes you can use to initialize those sorts of references.

I hope that helps explain the issue