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我正嘗試使用WCF與SQL數據庫同步SQLCE數據庫。我有一個繼承自KnowledgeSyncProvider的代理。我重寫（其中包括）以下方法未將SyncKnowledge對象傳遞給WCF服務
public override ChangeBatch GetChangeBatch(uint batchSize, SyncKnowledge destinationKnowledge, out object changeDataRetriever)
{
GetChangesParameters changesWrapper = proxy.GetChanges(batchSize, destinationKnowledge);
...
}
當執行GetChangesParameters changesWrapper = proxy.GetChanges(batchSize, destinationKnowledge);代碼，我收到以下錯誤
Retrieving the COM class factory for component with CLSID {EC413D66-6221-4EBB-AC55-4900FB321011} failed due to the following error: 80040154.
堆棧跟蹤：
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at WCF_Sync_Common.IRelationalSyncContract.GetChanges(UInt32 batchSize, SyncKnowledge destinationKnowledge)
at ConsoleApplication10.RelationalProviderProxy.GetChangeBatch(UInt32 batchSize, SyncKnowledge destinationKnowledge, Object& changeDataRetriever) in C:\Users\amitesh.AKL\Documents\Visual Studio 2010\Projects\ConsoleApplication10\RelationalProviderProxy.cs:line 81
at Microsoft.Synchronization.KnowledgeProviderProxy.GetChangeBatch(UInt32 dwBatchSize, ISyncKnowledge pSyncKnowledge, ISyncChangeBatch& ppChangeBatch, Object& ppUnkDataRetriever)
好像在錯誤與SyncKnowledge對象在通過線路傳遞時有關。我試圖調用沒有SyncKnowledge對象的代理方法，並能夠調用該方法。但只要我包含對象，我就會得到上述錯誤。任何人都可以解釋，指向我正確的方向上我缺少的東西