Replica with the specified key was not found Error in sync fx 2.1

Question

I am getting the following error while applying batch file changes in the sync framework 2.1.

=====================================================================================================================

ApplyChanges: An unexpected error occurred when applying batch file C:\Windows\TEMP\WebSync_4af646611d0f4601a72c40c9a0481479\b3441075-8fcb-4feb-a71a-df7bbe79d09b.batch. See the inner exception for more details.
Microsoft.Synchronization.ReplicaNotFoundException: Replica with the specified key was not found.
   at Microsoft.Synchronization.SyncServices.ThrowExceptionForHR(Int32 hr)
   at Microsoft.Synchronization.ReplicaKeyMap.LookupReplicaId(UInt32 replicaKey)
   at Microsoft.Synchronization.Data.SyncRowMetadata..ctor(DataRow row, Boolean isTombstone, DbSyncAdapter adapter, SyncKnowledge fromKnowledge, SyncKnowledge toKnowledge, Boolean isLocal)
   at Microsoft.Synchronization.Data.RelationalSyncProvider.ApplyChangesInternal(DbSyncScopeMetadata scopeMetadata, IDbTransaction transaction, FailedDeleteDelegate_type failedDeleteDelegate, DataSet dataSet, ChangeApplicationType applyType)
   at Microsoft.Synchronization.Data.RelationalSyncProvider.ApplyChanges(DbSyncScopeMetadata scopeMetadata, IDbTransaction applyTransaction, DataSet dataSet, DbSyncSession DbSyncSession, Boolean commitTransaction, FailedDeleteDelegate_type failedDeleteDelegate, String batchFileName, ChangeApplicationAction& action)
   at Microsoft.Synchronization.Data.RelationalSyncProvider.SingleTransactionApplyChangesAdapter.Apply(DataSet dataSet, Boolean commitTransaction, FailedDeleteDelegate_type failedDeleteDelegate, String batchFileName, ChangeApplicationAction& action)
   at Microsoft.Synchronization.Data.DbSyncBatchConsumer.ApplyBatches(DbSyncScopeMetadata scopeMetadata, DbSyncSession syncSession, SyncSessionStatistics sessionStatistics)

=================================================================================================================================

How to resolve this issue?

Any help would be greatly appreciated.

Answer 1

do you consistently get this error? or at random times only?