Compiler Error CS0583

Internal Compiler Error. An internal error has occurred in the compiler. To work around this problem, try simplifying or changing the program near the locations listed below. Locations at the top of the list are closer to the point at which the internal error occurred. Errors such as this can be reported to Microsoft by using the /errorreport option.

Please create a bug report file with the '/bugreport' option, and submit the report to your assigned problem reporting contact.

Use the /bugreport compiler option to capture the problem.