Thank you for your interest in Telerik Test Studio.
As of what you describe I assume there is a compilation error in any of your tests. Before executing a test Test Studio compiles the whole project and if there is any errors the test won't even run. For that purposewe have included the Output pane
in our tool where you could see why the build fails. Please double check if any errors appear and fix them before next execution.
Please let me know if the above information helped you solve the encountered issue and if you need further assistance. I hope to hear from you soon.