Asp.net mvc 无法序列化会话状态。在'；StateServer'；和'；SQLServer'；模式下，ASP.NET将序列化会话状态对象

正如我所描述的，我的会话有问题 我创建了ASPState并配置了我的webconfig 但它给出了这个错误

   Unable to serialize the session state. In 'StateServer' 
and 'SQLServer' mode, ASP.NET will serialize the session state objects,
 and as a result non-serializable objects or MarshalByRef objects are not
 permitted. The same restriction applies if similar
 serialization is done by the custom session state store in 'Custom' mode. 
  [SerializationException: Type 'System.ServiceModel.ClientBase1[[Tourism.Plugin.BiletBank.BiletBankSRV.I_Shopping, Tourism.Plugin.BiletBank, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]' in Assembly 'System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.]

该类System.ServiceModel.ClientBase`1[[Tourism.Plugin.BiletBank.BiletBankSRV.I_]中给出了异常 我使用了serializable属性

 [System.Serializable()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
    public partial class I_ShoppingClient : System.ServiceModel.ClientBase<Tourism.Plugin.BiletBank.BiletBankSRV.I_Shopping>, Tourism.Plugin.BiletBank.BiletBankSRV.I_Shopping {....

[System.Serializable（）]
[System.Diagnostics.DebuggerStepThroughAttribute（）]
[System.CodeDom.Compiler.GeneratedCodeAttribute（“System.ServiceModel”，“4.0.0.0”）]
公共部分类I_ShoppingClient:System.ServiceModel.ClientBase、Tourism.Plugin.BiletBank.BiletBankSRV.I_Shopping{。。。。

编辑注： 如何编辑 .net框架代码。。。

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[SerializationException:程序集'System.ServiceModel，Version=4.0.0.0，Culture=4.0.0，Culture=neutral，PublicKeyToken=null'中的类型'System.ServiceModel.ClientBase'1[[，Version=1.0.0.0，Culture=neutral，PublicKeyToken=b77a5c561934e089'未标记为可序列化。]

请注意，它说的是MenuItemModel，而不是MenuModel。@ErikFunkenbusch谢谢你……我更新了我的问题