Relations is a static property, so when the first call to that class is made in your app, the code will then try to initialize ContractRelations as a class. That class might have corrupt IL which causes this. The error you get is typically a result of an internal C# compiler error. We've had it in the beta of v2 as well when there were a lot of statements generated in one method, which caused the C# compiler to emit corrupt IL. However in the relations class, there are just a couple of properties, one for each relation.
If you're using .NET 1.1, be sure you're using .NET 1.1 SP1 and recompile all code. Also, please check this thread:
http://www.llblgen.com/tinyforum/Messages.aspx?ThreadID=6040
it gives you ideas how to verify your assembly to see if it contains any corrupt IL code. Because of the issue with the early beta of v2, I did some research on this and it's in all cases a problem with the C# compiler which can be fixed by changing some code in the method which causes the problem, e.g. reordering statements. If you've ever done C++ programming, it's similar to the optimization bugs / issues which sometimes occured in VC++ 6.0 in release builds.
