this is a know issue. We haven't fixed it yet because we're unable to reliably reproduce it. It appears seemingly randomly. You can resolve the problem easily by adding the necessary references. You need to add project references to all the DLLs located in this folder:
C:\Program Files (x86)\Telerik\WebUI Test Studio 2010.3\Bin\Translators
Here's a Jing video demonstrating how this is done:
I apologize for any inconvenience this issue may have cause!
Please don't hesitate to contact us again if you have any further questions!
the Telerik team
Do you think you know all the new features coming out in Test Studio R1 2011?
Think again - we have some surprises and will share them with you in the What's New in Test Studio R1 2011 Webinar on May 12th.