Test View Issue: An exception was encountered while constructing the content of this frame
In Visual Studio 2010 Under certain circumstances the you may encounter problems opening the Test View window. (see image below) Luckily it is easy to fix. To make it go away, you need to close/reopen Visual Studio. If you don’t want this ever happening again, do the following: 1. Go to the Tools main menu -> Options… | Test Tool...