Get Error after Update

This error I get since I updated my Unity to 4.6…

System.Security.VerificationException: Error verifying DW_Unity4NativePluginRelocator:.cctor (): Cannot take the address of a init-only field at 0x0000
UnityEditor.EditorAssemblies:SetLoadedEditorAssemblies(Assembly)

Any Ideas why this error is pop up?

I think more details is needed. Is this an update older project, what is target platform? Using any 3rd part assets. Looked it up on google as I am sure you have as well, hard to de-bug based on that information. Make sure you don’t have an extra version of unity running though. Use task manager to check processes.