Bug in the dynamic language runtime in combination with IIS 7.5
问题 I apologize for this question length, but I think you'll all find it worth it. Before I begin, let me say that I was really trying to produce an isolated console application, but sadly that proved impossible. The bug does not happen in a console app. It doesn't happen in a self-contained ASP.NET app. It only happens when run within IIS 7.5 on Windows 7. The error seems related to the dynamic language runtime as it involves the combination of a __TransparentProxy (via WCF) and a dynamic