Steps for repro: Using the project attached internally execute the test list with the CommandLine client. Expected Behavior: The test list to run Actual behavior: Run is failing with the following exception: '07/10/2015 1:12:24 PM' - System.ArgumentException: Unable to find the test class type 'EAAC.InsertEaacClient' 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)