Thank you so much for sharing your solution to this problem.
This is really helpful.
Jack Poorte, Apr 16, 2014
I experienced the same problem. In my case, it wasn't a problem with the solution or VS, but with the OS itself. The issue is caused by the Automatic File Block feature in Windows 7.
Here's a link for a page that explains the problem.
Here's a link explaining how to fix the problem. It includes a link to the "Streams" tool download. This is an MS Internals tool.
I followed the instructions and after everything was "unblocked", the solutions loads.
Best of luck.
Warren Oldham, Apr 16, 2014
You are the first to report this. So, I am not sure what to tell you.
It seems to be specific to your machine or setup.
Possibly a VS 2012 re-install may be needed?
Jack Poorte, Sep 13, 2013