安装 .net framework 3.5 sp1 后出现 System.InvalidOperationException 问题答案

【问题标题】：System.InvalidOperationException issue after installing .net framework 3.5 sp1安装 .net framework 3.5 sp1 后出现 System.InvalidOperationException 问题
【发布时间】：2011-07-01 20:13:32
【问题描述】：

我刚刚安装了 .net framework 3.5 sp1，之后出现以下错误。

:System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.InvalidOperationException: Type 'SL.CreateDocs' cannot be added to list of known types since another type 'SL.MyList' with the same data contract name 'http://schemas.datacontract.org/2004/07/SL.Object:DocList' is already present.

Server stack trace: 
   at System.Runtime.Serialization.DataContract.CheckAndAdd(Type type, Dictionary`2 typesChecked, Dictionary`2& nameToDataContractTable)
   at System.Runtime.Serialization.XmlObjectSerializerContext.GetDataContractsForKnownTypes(IList`1 knownTypeList)
   at System.Runtime.Serialization.DataContractSerializer.get_KnownDataContracts()
   at System.Runtime.Serialization.XmlObjectSerializerContext..ctor(DataContractSerializer serializer, DataContract rootTypeDataContract)
   at System.Runtime.Serialization.XmlObjectSerializerReadContext.CreateContext(DataContractSerializer serializer, DataContract rootTypeDataContract)
   at System.Runtime.Serialization.DataContractSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName)
   at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName)
   at System.Runtime.Serialization.XmlObjectSerializer.ReadObject(XmlDictionaryReader reader)
   at System.ServiceModel.Dispatcher.FaultFormatter.CreateFaultException(MessageFault messageFault, String action)
   at System.ServiceModel.Dispatcher.FaultFormatter.Deserialize(MessageFault messageFault, String action)
   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.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

do .net framework 3.5 sp1 有任何问题。

谢谢贾格纳特。

【问题讨论】：

标签： .net-3.5

【解决方案1】：

我刚刚重新生成了 wcf 代理，新代理现在包含一些与故障相关的新部分。它解决了我的问题。

这是与框架 3.5 sp1 相关的问题

【讨论】：