Inconsistent accessibility error in REPL

[mspielberg]

Running RUE 5.5.1 in UMM 0.31.0.0, and I am not seeing the "Failed to initialize REPL environment" error in the logs, but I am getting the "CS0060: Inconsistent accessibility" errors in the REPL. The target game is Derail Valley which runs on the .NET Framework 4.x version of the Unity runtime.

I looked at #68 but opened a new issue due to the lack of the initialization failure message. Any other known causes for this issue?