我得到的例外是:
System.Collections.Generic.KeyValuePair`2[System.String, System.InvalidOperationException:未为类型定义序列化程序() 0x00000 in :0 at ProtoBuf.Meta.RuntimeTypeModel.Serialize (Int32 key,System.Object value,ProtoBuf.ProtoWriter)System.Object值) 0x00000 in :0 at