Using the project attached internally, export it in Visual Studio and try to run a test. Expected behavior: To be able to run the test Actual behavior: The test is not run and the following exception is thrown: '06/14/2016 9:52:30 AM' - System.ArgumentException: Unable to find the test class type 'TelerikDemo.CodedStep' in your test assembly. Please make sure your test code behind is compiled with your latest changes. at ArtOfTest.WebAii.Design.Execution.ExecutionUtils.EnsureTypeExists(Assembly assm, String typeName) at ArtOfTest.WebAii.Design.Execution.ExecutionUtils.CreateCodedTestInstance(Test test, TestResult result, String binariesFolder) at ArtOfTest.WebAii.Design.Execution.ExecutionEngine.InternalExecuteTest(Test test, TestResult initializationResult) at ArtOfTest.WebAii.Design.Execution.TestExecuteProxy.ExecuteTest(ExecuteTestCommand command)