Cannot retrieve table data for the query operation because the table "%1!s!" schema is being altered too frequently. Because ...

Cannot retrieve table data for the query operation because the table "%1!s!" schema is being altered too frequently. Because the table "%2!s!" contains a computed column, changes to the table schema require a refresh of all table data. Retry the query operation, and if the problem persists, use SQL Server Profiler to identify what schema-altering operations are occurring.