SP2010: Assembly was requested for LobSystem with Name, but this assembly was not returned
Working my way through BCS, I encountered another error which seems to be pretty undocumented. It’s as follows: Error while executing web part: System.InvalidOperationException: Unable to open the specified list item. ---> Microsoft.BusinessData.Infrastructure.BdcException: The shim execution failed unexpectedly - Assembly was requested for LobSystem with Name 'Company.Projects.Contoso.BCSLobSystem', but this assembly was not returned. SystemUtility of