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Created attachment 4084 [details]
Screenshot of the exception
Description of Problem:
Steps to reproduce the problem:
1. Create a new non-empty web application(or mvc application)
2. run with debug
How often does this happen?
you are probably trying to debug a 64bit application. you can only debug 32bit when running on the Microsoft .NET runtime right now.
*** This bug has been marked as a duplicate of bug 13508 ***