Well I have been reading blogs, etc. etc. on this error but none really match my issue. See, I ran the Upgrade-SPContentDatabase last night as this was needed for various reasons on a site that was migrated from 2007 to 2010. Keep in mind and still using 2007 UI for now on this site.
So here is my issue: I can upload multiple documents -no problem (anywhere on the site - there is about 10 subsites under main Site Collection). I can upload a SINGLE document to the root site documents library.
Beyond that: IF I try to upload a document to any of the subsite document libraries I get the below message. I can edit file properties, etc. just cannot upload a single document. :( Any ideas??
This is the only useful information from the ULS:
System.Runtime.InteropServices.COMException: List does not exist. The page you selected contains a list that does not exist. It may have been deleted by another user.
at Microsoft.SharePoint.Library.SPRequestInternalClass.GetListsWithCallback(String bstrUrl, Guid foreignWebId, String bstrListInternalName, Int32 dwBaseType, Int32 dwBaseTypeAlt, Int32 dwServerTemplate, UInt32 dwGetListFlags, UInt32 dwListFilterFlags, Boolean bPrefetchMetaData, Boolean bSecurityTrimmed, Boolean bGetSecurityData, Boolean bPrefetchRelatedFields, ISP2DSafeArrayWriter p2DWriter, Int32& plRecycleBinCount)
at Microsoft.SharePoint.Library.SPRequest.GetListsWithCallback(String bstrUrl, Guid foreignWebId, String bstrListInternalName, Int32 dwBaseType, Int32 dwBaseTypeAlt, Int32 dwServerTemplate, UInt32 dwGetListFlags, UInt32 dwListFilterFlags, Boolean bPrefetchMetaData, Boolean bSecurityTrimmed, Boolean bGetSecurityData, Boolean bPrefetchRelatedFields, ISP2DSafeArrayWriter p2DWriter, Int32& plRecycleBinCount)