Article relates to
any Telerik Reporting version
10 April, 2014
Last modified by
PROBLEM After upgrading Telerik Reporting and opening an existing report (created with the previous version) in VS design mode, the following errors occur:
“Unable to load one or more of the requested types” or "Telerik.Reporting.Drawing.Unit cannot be converted to type Telerik.Reporting.Drawing.Unit" DESCRIPTION A possible reason for this problem is that your project uses "stale" assemblies from the previous Telerik Reporting version, which do not match the new DLL versions. In other words, the assemblies from the older missing version are still in your project's bin folder, and these assemblies do not comply with the new ones, leading to the error above. SOLUTION
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