BizTalk Server 2013 (CU2) could not download a file from a SharePoint 2013 document library. File was left in checked out state on SharePoint and on BizTalk Server you could read:
The Windows SharePoint Services receive adapter has failed to process the SharePoint file test.txt. The following error has been encountered:
[System.InvalidCastException] Unable to cast object of type ‘System.Collections.Generic.Dictionary`2[System.String,System.Object]’ to type ‘Microsoft.SharePoint.Client.Field’.
Error code: 12310
Once you have addressed the issue causing this problem, you can undo the check-out for this file and the adapter will try to process it again. Continue reading