< !-- pragyaa. ntext gives an error . Doc bug. --> < !-- pragyaa. ntext gives an error . doc bug.--> < !-- pragyaa. ntext gives an error in either of the params. Should work as per doc. Check.--> 0Internal .NET Framework Data Provider error {0}. BRecords were updated, but the values were not retrieved back. See internal error for more details. The current migration SQL generator ({0}) is unable to generate SQL for operations of type '{1}'. Call SetSqlGenerator on your migrations configuration class to use a different SQL generator. To create a custom SQL generator that can handle this type of operation, add a new class that derives from {0} and override Generate(MigrationOperation). Unable to update the EntitySet '{0}' because it has a DefiningQuery and no < {1}> element exists in the < {2}> element to support the current operation.