Test studio throws "an unexpected error occured in Test Studio ...." error while trying to run a Test List. When you add a test which has .cs file in read only mode, (the resx file is missing) in a test list and try to run the test list, Test Studio crashes. 

You can observe this behavior in this video:

http://screencast.com/t/uizhnbto

Please use the attached project in order to reproduce the problem. This is reproduced with Test Studio 2013.1.911