BulkInsertCommand failed in Sync Framework 2.1

On occasion I get the following error when trying to synchronize from SQL Express to SQL Server using Sync Framework 2.1. Once a client gets this error they have to reinitialize the scope. There can't be anything wrong with the syntax like the error states because it runs no problem for long periods of time (with inserts happening)开发者_开发问答. Any thoughts?

11:18:21 AM Failed to execute the command 'BulkInsertCommand' for table 'XXX'; the transaction was rolled back. Ensure that the command syntax is correct. 11:18:21 AM Microsoft.Synchronization 11:18:21 AM at Microsoft.Synchronization.Data.ChangeHandlerBase.CheckZombieTransaction(String commandName, String table, Exception ex)

From a trace log:

WARNING, OfflineAgentMonitor.vshost, 13, 04/05/2011 11:16:17:224, Bulk command BulkUpdateCommand failed with the following exception. Rows will be retried during single apply. System.Data.SqlClient.SqlException (0x80131904): Trying to pass a table-valued parameter with 19 column(s) where the corresponding user-defined table type requires 20 column(s).

try to enable Sync Fx tracing and check if Sync Fx logs the original exception. if i remember it right, the exception is normally raised when the db connection is lost. you should be able to retry the sync though without re-provisioning the scope.

This happened to me syncing between 2 SQL Azure databases. The initial cause was that the slave DB grew larger than it's provisioned size. I increased the size, but it was a good 20 minutes before the sync stopped throwing the error