I installed the 2012_1_CTP of the SAK and attempted to activate the RadGrid in a site collection. I got a file not found error on the ".dwp" web part file. After inspecting the Elements.xml file in the folder containing the web part, I discovered the path was not specified properly. I removed the erroneous "RadGridSharePoint" directory level from the Path attribute.
Does not work:
Works:
This allowed me to properly activate the SPRadGrid web part.
Does not work:
<Elements xmlns="http://schemas.microsoft.com/sharepoint/" > <Module Name="TelerikSPRadGridWebPart" List="113" Url="_catalogs/wp"> <File Path="RadGridSharePoint\TelerikSPRadGridWebPart\TelerikSPRadGridWebPart.dwp" Url="TelerikSPRadGridWebPart.dwp" Type="GhostableInLibrary"> <Property Name="Group" Value="Telerik" /> </File> </Module></Elements>Works:
<Elements xmlns="http://schemas.microsoft.com/sharepoint/" > <Module Name="TelerikSPRadGridWebPart" List="113" Url="_catalogs/wp"> <File Path="TelerikSPRadGridWebPart\TelerikSPRadGridWebPart.dwp" Url="TelerikSPRadGridWebPart.dwp" Type="GhostableInLibrary"> <Property Name="Group" Value="Telerik" /> </File> </Module></Elements>This allowed me to properly activate the SPRadGrid web part.