2010-10-01 69 views
8

C#如何解决:C#

“异常被调用的目标引发异常”每次我跑我的porgram我得到这个异常: alt text

但是,当我在调试模式下运行,有没有例外,程序正常工作,我该怎么办?

注:我不使用的invoke()在项目的任何地方

编辑:好了,这是在细节中发现的代码: 如果有人知道如何使用protoBuff,和知道这个问题....

************** Exception Text ************** 
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> ProtoBuf.ProtoException: Incorrect wire-type deserializing TimeSpan 
    at ProtoBuf.ProtoBcl.ProtoTimeSpan.DeserializeTicks(SerializationContext context) in c:\protobuf-net_fixed\trunk\protobuf-net\ProtoBcl\ProtoTimeSpan.cs:line 80 
    at ProtoBuf.ProtoBcl.ProtoTimeSpan.DeserializeDateTime(SerializationContext context) in c:\protobuf-net_fixed\trunk\protobuf-net\ProtoBcl\ProtoTimeSpan.cs:line 41 
    at ProtoBuf.Property.PropertyDateTimeString`1.DeserializeImpl(TSource source, SerializationContext context) in c:\protobuf-net_fixed\trunk\protobuf-net\Property\PropertyDateTimeString.cs:line 32 
    at ProtoBuf.Property.Property`2.Deserialize(TSource source, SerializationContext context) in c:\protobuf-net_fixed\trunk\protobuf-net\Property\Property.cs:line 150 
    at ProtoBuf.Serializer`1.Deserialize[TCreation](T& instance, SerializationContext context) in c:\protobuf-net_fixed\trunk\protobuf-net\SerializerT.cs:line 568 
    at ProtoBuf.Serializer`1.DeserializeChecked[TCreation](T& instance, SerializationContext source) in c:\protobuf-net_fixed\trunk\protobuf-net\SerializerT.cs:line 400 
    at ProtoBuf.SerializerItemProxy`2.Deserialize(TActualClass& instance, SerializationContext source) in c:\protobuf-net_fixed\trunk\protobuf-net\SerializerProxy.cs:line 86 
    at ProtoBuf.Serializer.Deserialize[T](SerializationContext source) in c:\protobuf-net_fixed\trunk\protobuf-net\Serializer.cs:line 302 
    at ProtoBuf.Serializer.Deserialize[T](Stream source) in c:\protobuf-net_fixed\trunk\protobuf-net\Serializer.cs:line 289 
    --- End of inner exception stack trace --- 
    at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) 
    at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner) 
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) 
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) 
    at ProtoBuf.Serializer.NonGeneric.Deserialize(Type type, Stream source) in c:\protobuf-net_fixed\trunk\protobuf-net\NonGeneric.cs:line 154 
    at ProtoBuf.Serializer.NonGeneric.TryDeserializeWithLengthPrefix(Stream source, PrefixStyle style, Getter`2 typeReader, Object& item) in c:\protobuf-net_fixed\trunk\protobuf-net\NonGeneric.cs:line 128 
    at AccessPoint.MainForm.getEventsList() in C:\Users\user\Desktop\accesspoint\AccessPoint\AccessPoint\MainForm.cs:line 97 
    at AccessPoint.MainForm.Form1_Load(Object sender, EventArgs e) in C:\Users\user\Desktop\accesspoint\AccessPoint\AccessPoint\MainForm.cs:line 18 
    at System.Windows.Forms.Form.OnLoad(EventArgs e) 
    at System.Windows.Forms.Form.OnCreateControl() 
    at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) 
    at System.Windows.Forms.Control.CreateControl() 
    at System.Windows.Forms.Control.WmShowWindow(Message& m) 
    at System.Windows.Forms.Control.WndProc(Message& m) 
    at System.Windows.Forms.ScrollableControl.WndProc(Message& m) 
    at System.Windows.Forms.Form.WmShowWindow(Message& m) 
    at System.Windows.Forms.Form.WndProc(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) 
    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 

行97:

int startIndex = count - 10, index = 0; 
       object obj; 
       while (Serializer.NonGeneric.TryDeserializeWithLengthPrefix(file, PrefixStyle.Base128, tag => 
       { 
        return index++ >= startIndex ? typeof(EventsWireFrame) : null; 
       }, out obj)) 
       { 
        EventsWireFrame evt = (EventsWireFrame)obj; 
        AddEventToTable(evt.eventDate, evt.eventType, evt.eventKeyNumber, evt.eventKeyName, evt.eventDoor, true); 

       } 

我弄不明白,怎么了?我是否需要添加另一部分代码?也许seraliztaion?

+5

首先点击Details并查看完整的异常和堆栈跟踪。 – 2010-10-01 11:12:39

+0

做迈克尔说的话。什么是实际的错误? – 2010-10-01 11:14:17

+0

我添加了代码,如果你想要完整的,只要告诉我。 – 2010-10-01 11:17:07

回答

4

您正在使用Protobuf反序列化的东西不明白。可能数据序列化使用另一个版本的程序集或数据不是由您首先序列化。 Google协议缓冲区可用于将对象的表示写入流。您可以稍后反序列化流以重新创建对象。但是,以同样的方式序列化和反序列化对象非常重要。如果你只是向反序列化中提供垃圾,你将会抛出奇怪的异常。发生

问题在MainForm.cs,线路97

如果你只有当你在释放模式,那么也许你正在尝试反序列化文件位于二进制目录和释放模式运行出现错误文件已过期,也就是说,它包含您序列化的旧版数据的序列化数据。

+0

好的,我在主帖中增加了一个部分,这是对您的评论 – 2010-10-01 11:29:11

27

TargetInvocationException通过告诉你它在“方法调用”期间崩溃,通常通过something.Invoke掩盖了真正的异常。

你要做的就是查看异常对象的InnerException属性(TargetInvocationException对象),这会给你带来的实际异常和更有用的堆栈跟踪。

+1

内部异常有我需要的所有细节来解决这个问题,在我的情况下确实是'Invalid Cast Exception'。 – Niklas 2016-10-21 22:50:48