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I just upgraded my project to version 3.0 of the Extended WPF Toolkit™ Community Edition and now my DataGrid shows an error at design time saying:

The specified view type must derive from ViewBase. Parameter name: TargetViewType

Is this a new bug in the new version?

Michel Feinstein
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1 Answers1

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I had to add PresentationFramework.Luna (Microsoft DLL).

I'm guessing it was probably there before the update but I had to re-add it. Also had to set it to copy local which shouldn't be necessary but right now I didn't have time to find an alternative way to locate the dll.

enter image description here

Simon_Weaver
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