“未找到资源 MultipleIdDefinition”关于 Windows Phone 7 上的反序列化

Question

我突然开始从我的 Windows Phone 7 应用程序中获取此信息。我不知道反序列化数据中发生了什么变化会导致这种情况。知道这意味着什么吗？

System.Runtime.Serialization.SerializationException occurred
  Message=The resource MultipleIdDefinition was not found in System.Runtime.Serialization
  StackTrace:
       at System.Runtime.Serialization.ReferencedObjectCache.Add(String id, Object referencedObject)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.AddNewObjectWithId(String id, Object obj, Boolean isReference)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.AddNewObject(Object obj, Boolean isReference)
       at System.Runtime.Serialization.XmlFormatReader.InvokeBeforeDeserialization(ClassDataContract classContract, XmlObjectSerializerReadContext context)
       at System.Runtime.Serialization.XmlFormatReader.InitializeCallStack(DataContract clContract, XmlReaderDelegator xmlReaderDelegator, XmlObjectSerializerReadContext xmlObjContext, XmlDictionaryString[] memberNamesColl, XmlDictionaryString[] memberNamespacesColl)
       at System.Runtime.Serialization.ClassDataContract.ReadXmlValue(XmlReaderDelegator xmlReader, XmlObjectSerializerReadContext context)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.ReadDataContractValue(DataContract dataContract, XmlReaderDelegator reader)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, DataContract& dataContract)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Int32 id, RuntimeTypeHandle declaredTypeHandle, String name, String ns)
       at System.Runtime.Serialization.XmlFormatReader.InternalDeserialize(Object value, Type type, String name, String ns, XmlObjectSerializerReadContext context, XmlReaderDelegator xmlReader)
       at System.Runtime.Serialization.XmlFormatReader.ReadValue(Type type, String name, String ns, XmlObjectSerializerReadContext context, XmlReaderDelegator xmlReader)
       at System.Runtime.Serialization.XmlFormatReader.ReadCollectionItem(CollectionDataContract collectionContract, Type itemType, String itemName, String itemNs, XmlObjectSerializerReadContext context, XmlReaderDelegator xmlReader)
       at System.Runtime.Serialization.XmlFormatReader.ReadCollectionItems(DeserializedObject desObj, CollectionDataContract collectionContract, Int32 membersRead, Int32 size)
       at System.Runtime.Serialization.XmlFormatReader.ReadCollection(DeserializedObject desObj, CollectionDataContract collectionContract, Int32 membersRead)
       at System.Runtime.Serialization.XmlFormatReader.Deserialize(XmlObjectSerializerReadContext context)
       at System.Runtime.Serialization.XmlFormatReader.InitializeCallStack(DataContract clContract, XmlReaderDelegator xmlReaderDelegator, XmlObjectSerializerReadContext xmlObjContext, XmlDictionaryString[] memberNamesColl, XmlDictionaryString[] memberNamespacesColl)
       at System.Runtime.Serialization.ClassDataContract.ReadXmlValue(XmlReaderDelegator xmlReader, XmlObjectSerializerReadContext context)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.ReadDataContractValue(DataContract dataContract, XmlReaderDelegator reader)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, DataContract& dataContract)
       at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String name, String ns)
       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 ...
       at Microsoft.Phone.Shell.PhoneApplicationService.FireLaunching()
       at Microsoft.Phone.Execution.NativeEmInterop.FireOnLaunching()

Answer 1

如果您没有故意反序列化任何 XML，那么我只能猜测：

• 应用程序的独立存储包含一些应用程序状态 XML（例如来自 AppSettings）
• ，或者配置 XML 存在问题您的应用程序

要尝试解决此问题，您可以：

1. 查看项目的 Properties 文件夹 - 那里的 XML 配置文件是否正常？如果您在编辑器中打开它们，是否会显示任何警告或错误？
2. 从模拟器和/或手机中卸载应用程序（您甚至可以尝试重新启动模拟器或将手机恢复出厂设置）

如果没有，请发布更多信息，我们将尽力帮助更多 - 有趣的问题！

Answer 2

如果您正在使用 WCF，这可能是由于在服务器端添加了 DataContract 的“IsReference=true”而导致的。
在实际有效负载中，它会像 z:Id=”i7” 一样引人注目。

如果您有两个版本（一个工作，一个不工作），我建议尽可能深入地调试，以便您可以清楚地看到反序列化的内容，然后对两个版本进行文本比较。