protobuf網「找到二進制無參數的構造函數」

Question

我有一類是波紋管

[DataContract(IsReference = true)] 
    [ProtoContract(SkipConstructor = true)] 
    public class BelgeDosyasi : TablesBase 
    { 
     public BelgeDosyasi() 
     { 


     } 
     [DataMember(Order = 1)] 
     public Binary HizmetBelgeDosya { get; set; } 
     [DataMember(Order = 2)] 
     public string HizmetBelgeUzantisi { get; set; } 
     [DataMember(Order = 3)] 
     public int HizmetBelgeBoyutu { get; set; } 
     [DataMember(Order = 4)] 
     public string HizmetBelgeAdi { get; set; } 
    } 

這類幫助請從數據庫的二進制文件，而不protobuf的它工作得很好，但在開始使用後關於對象反序列化的protobuf我收到了這個錯誤「沒有爲Binary找到無參數的構造函數」，我無法解決問題。 我的protobuf-net版本是Version = 2.0.0.668。任何幫助表示讚賞。

at ProtoBuf.Meta.TypeModel.ThrowCannotCreateInstance(Type type) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:line 1397 
    at proto_8(Object , ProtoReader) 
    at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Read(Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 57 
    at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 775 
    at ProtoBuf.ProtoReader.ReadTypedObject(Object value, Int32 key, ProtoReader reader, Type type) in c:\Dev\protobuf-net\protobuf-net\ProtoReader.cs:line 579 
    at ProtoBuf.ProtoReader.ReadObject(Object value, Int32 key, ProtoReader reader) in c:\Dev\protobuf-net\protobuf-net\ProtoReader.cs:line 566 
    at proto_6(Object , ProtoReader) 
    at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Read(Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 57 
    at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 775 
    at ProtoBuf.ServiceModel.XmlProtoSerializer.ReadObject(XmlDictionaryReader reader, Boolean verifyObjectName) in c:\Dev\protobuf-net\protobuf-net\ServiceModel\XmlProtoSerializer.cs:line 193 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.PartInfo.ReadObject(XmlDictionaryReader reader, XmlObjectSerializer serializer) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeReply(Message message, Object[] parameters) 
    at System.ServiceModel.Dispatcher.ProxyOperationRuntime.AfterReply(ProxyRpc& rpc) 
    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) 



at ProtoBuf.Meta.TypeModel.ThrowCannotCreateInstance(Type type) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:line 1397 
    at proto_8(Object , ProtoReader) 
    at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Read(Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 57 
    at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 775 
    at ProtoBuf.ProtoReader.ReadTypedObject(Object value, Int32 key, ProtoReader reader, Type type) in c:\Dev\protobuf-net\protobuf-net\ProtoReader.cs:line 579 
    at ProtoBuf.ProtoReader.ReadObject(Object value, Int32 key, ProtoReader reader) in c:\Dev\protobuf-net\protobuf-net\ProtoReader.cs:line 566 
    at proto_6(Object , ProtoReader) 
    at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Read(Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 57 
    at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 775 
    at ProtoBuf.ServiceModel.XmlProtoSerializer.ReadObject(XmlDictionaryReader reader, Boolean verifyObjectName) in c:\Dev\protobuf-net\protobuf-net\ServiceModel\XmlProtoSerializer.cs:line 193 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.PartInfo.ReadObject(XmlDictionaryReader reader, XmlObjectSerializer serializer) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeReply(Message message, Object[] parameters) 
    at System.ServiceModel.Dispatcher.ProxyOperationRuntime.AfterReply(ProxyRpc& rpc) 
    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) 

Answer 1

馬克，非常感謝你對你的反應，是的，我發現，這個例外是從二進制類型它的自我是AV類型從Linq.Binary繼承而來。將它轉換爲Byte []解決了這個問題。