We haven't encountered this particular error message before.
That said, we've fixed a number of issues in the internal builds.
It might be worth giving them a try. There's also a service pack release scheduled for next week.
Will it be possible for you to send as a sample, non-repaired file?
Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.