We have not worked on this item, because we expected some feedback to process it further.
If your case is the case as the initial screen shot, it seems the project has broken Assembly name reference - it says that "\.dll" file is invalid, with missing name of the assembly, which means the assembly name of the project cannot be resolved. Could it be due to source control state of project (having different versions of the project setting file in different locations and overwriting them in source control, thus breaking either one or another user working with it) or different people using Visual Studio and Test Studio with same project (because both resolve assemblies differently), etc.
Unfortunately it will be very hard to implement a blind fix for a project that gets broken randomly. Could you please send us a copy of the project that causes the problem when the issue appears again at your end?
For example If you start a run and get this error, please make a copy of the project and send it to us with few details what exactly did you do before that and how you run the tests.
Thank you for your cooperation,