VS 2010 Test Runner error “The agent process was stopped while the test was running.”

Question

In Visual Studio 2010, I have a number of unit tests. When I run multiple tests at one time using test lists, I sometimes reveive the following error for one or more of the

Answer 1

For finding out where the exception was thrown click on the hyperlink "Test Run Error" next to the exclamation icon in the Test Results window. A window with the stack trace is opened.

This helps a lot to track down the error!