Error when opening Designer

When I try to open the designer (with exiting, e.g. tutorial or new project/package) I get the following error message:

Microsoft Visual Studio is unable to load this document:

Index (zero based) must be greater than or equal to zero and less than the size of the argument list.

After closing the project I have the following application event log error:

Faulting application devenv.exe, version 8.0.50727.42, stamp 4333e699, faulting module unknown, version 0.0.0.0, stamp 00000000, debug? 0, fault address 0x014fb87c.

I had the same problem. Any ideas anyone?|||I found the answer. Reformat and reinstall everything. As far as I can tell that is the only solution.|||

Did you find a solution to this? I am experiencing the same problem and hoping that a reformat and reload is not the only path.

Thanks

Richard

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