I downloaded a sample custom reviewer check application from the ArcGIS Resource Center: Data Reviewer - Creating a Custom Reviewer Check | ArcGIS Resource Center http://resources.arcgis.com/gallery/file/data-reviewer/details?entryID=1A7C977F-1422-2418-A062-ADDF50020750 In class 'IsNumericCustomCheck.vb' and function 'Excute', the following code generate an error: Dim pPLTSError As IPLTSError2 pPLTSError = New PLTSError System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'ESRI.Production.Engine.IPLTSError2'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{60AB3FBB-00D1-405D-9BEE-30BD93CEA872}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). I'm using VS 2010 and ArcGIS 10
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