If this is with Workbench 2 and Mathematica 10, there is a patch. Contact support@wolfram.com - include a description of the problem, the versions (including OS version), and your Mathematica’s Activation Key or License Number.
(In Mathematica and Wolfram Finance Platform, you can find your activation key by evaluating the command:
$ActivationKey
Alternatively, you can find your activation key in the Mathematica menu or Help menu under About Mathematica.)