Replica with the specified key was not found

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C#2.0

C#

Microsoft

Hi all

I am getting this error when synchronizing two databases.

Microsoft.Synchronization.ReplicaNotFoundException: Replica with the specified key was not found

SyncOrchestrator orchestrator = new SyncOrchestrator();
            orchestrator.LocalProvider = localProvider;
            orchestrator.RemoteProvider = remoteProvider;
            orchestrator.Direction = SyncDirectionOrder.UploadAndDownload;

            //progressForm = new ProgressForm();
            //progressForm.Show();

            //Check to see if any provider is a Sql provider and if it needs schema
            CheckIfProviderNeedsSchema(localProvider as SqlSyncProvider);
            
            CheckIfProviderNeedsSchema(remoteProvider as SqlSyncProvider);

            SyncOperationStatistics stats=null;
            try
            {
                stats = orchestrator.Synchronize();
            }
            catch (Exception ee)
            {
            }
            //progressForm.ShowStatistics(stats);
            //progressForm.EnableClose();
            return stats;