This error could occur if your application is using Telerik OpenAccess ORM version different than the version of Telerik OpenAccess Profiler. The cause of the problem could be, if you have installed a new OpenAccess version but you didn't update the OpenAccess references in the solution, then there will be a mismatch between the Profiler and solution version. You can refer to this article How to: Upgrade References
I hope that helps. If this is not the cause of the problem or you have other troubles, do not hesitate to contact us again.
OpenAccess ORM Q3 2013 simplifies your model operations even further providing you with greater flexibility. Check out the list of new features
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