.NET异常错误，这个错误是什么意思？

Question

我试过开发​​一个使用xml文件作为数据库的简单winform工具。我已经使用VS 2008快速版，C＃。

当此实用程​​序尝试写入xml文件时，此错误显示在其他计算机上。我试图在另一台计算机上的同一文件夹中提供System.Xml.dll & System.Xml.Linq.dll，但没用。

这是什么意思？任何解决方案

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box. 

************** Exception Text ************** 
System.MissingMethodException: Method not found: 'Void System.Xml.XmlReaderSettings.set_MaxCharactersFromEntities(Int64)'. 
    at System.Xml.Linq.XNode.GetXmlReaderSettings(LoadOptions o) 
    at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options) 
    at System.Xml.Linq.XDocument.Load(String uri) 
    at Issues.Form1.button1_Click(Object sender, EventArgs e) 
    at System.Windows.Forms.Control.OnClick(EventArgs e) 
    at System.Windows.Forms.Button.OnClick(EventArgs e) 
    at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) 
    at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) 
    at System.Windows.Forms.Control.WndProc(Message& m) 
    at System.Windows.Forms.ButtonBase.WndProc(Message& m) 
    at System.Windows.Forms.Button.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) 


************** Loaded Assemblies ************** 
mscorlib 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll 
---------------------------------------- 
Issues 
    Assembly Version: 1.0.0.0 
    Win32 Version: 1.0.0.0 
    CodeBase: file:///C:/Documents%20and%20Settings/sumsnl.LTSLFBD/Desktop/Process%20Improvement/Issues%20Register/Issues.exe 
---------------------------------------- 
System.Windows.Forms 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll 
---------------------------------------- 
System 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll 
---------------------------------------- 
System.Drawing 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll 
---------------------------------------- 
System.Xml 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll 
---------------------------------------- 
System.Configuration 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll 
---------------------------------------- 
4u_pgrmq 
    Assembly Version: 1.0.0.0 
    Win32 Version: 2.0.50727.832 (QFE.050727-8300) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll 
---------------------------------------- 

************** JIT Debugging ************** 
To enable just-in-time (JIT) debugging, the .config file for this 
application or computer (machine.config) must have the 
jitDebugging value set in the system.windows.forms section. 
The application must also be compiled with debugging 
enabled. 

For example: 

<configuration> 
    <system.windows.forms jitDebugging="true" /> 
</configuration> 

When JIT debugging is enabled, any unhandled exception 
will be sent to the JIT debugger registered on the computer 
rather than be handled by this dialog box. 

Answer 1

不提供System.Xml.dll & System.Xml.Linq.dll。它们是框架的一部分，应该已经存在于GAC中。确保用户计算机上安装了.NET 3.5 SP1。

Answer 2

这听起来像你正在开发针对.NET 3.5，但随后部署到只有.NET 2.0的机器。这是行不通的。

Answer 3

形式在这里：Facebook Toolkit 2.0 - Error when running it on a server with asp.net 2.0 installed

也许你有你的目标机器上的错误.NET版本？

Answer 4

在异常转储中发生了非常可怕的事情。调用堆栈清楚地表明它正在执行Linq代码，GetXmlReaderSettings（）仅在.NET 3.5程序集System.Xml.Linq中可用。但程序集列表不显示此程序集。

事实上，该列表看起来已损坏，请注意名为“4u_pgrmq”的条目。已从之前列出的System.dll加载。

.NET修订号很低，832应该在.NET 3.0时间范围内。可能的证据表明您已将3.5程序集添加到较早安装的版本。

通过简单地在机器上安装.NET 3.5 SP1解决此问题的可能性应该不错。