以前工作的asp.net webforms应用程序现在抛出这个错误:

系统。MissingMethodException:方法未找到

DoThis方法在同一个类上,它应该可以工作。

我有一个通用的处理程序,这样:

public class MyHandler: IHttpHandler
{
    public void Processrequest(HttpContext context)
    {
      // throws error now System.MissingMethodException: 
      // Method not found.
      this.DoThis(); 
    }

    public void DoThis(){ ... }
}

当前回答

I had a similar scenario where I was getting this same exception being thrown. I had two projects in my web application solution, named, for sake of example, DAL and DAL.CustSpec. The DAL project had a method named Method1, but DAL.CustSpec did not. My main project had a reference to the DAL project and also a reference to another project named AnotherProj. My main project made a call to Method1. The AnotherProj project had a reference to the DAL.CustSpec project, and not the DAL project. The Build configuration had both the DAL and DAL.CustSpec projects configured to be built. After everything was built, my web application project had the AnotherProj and DAL assemblies in its Bin folder. However, when I ran the website, the Temporary ASP.NET folder for the website had the DAL.CustSpec assembly in its files and not the DAL assembly, for some reason. Of course, when I ran the part that called Method1, I received a "Method not found" error.

为了修复这个错误,我必须从DAL更改AnotherProj项目中的引用。CustSpec到只是DAL,删除了临时ASP中的所有文件。NET Files文件夹,然后重新运行网站。从那以后,一切都开始运转了。我还确保了DAL。在“生成配置”中取消选中CustSpec项目后,没有生成该项目。

我想我要分享这个,也许它能在未来帮助到其他人。

其他回答

如果使用自己的NuGet服务器开发,请确保程序集版本都相同:

[assembly: AssemblyVersion("0.2.6")]
[assembly: AssemblyFileVersion("0.2.6")]
[assembly: AssemblyInformationalVersion("0.2.6")]

我通过在服务器上安装正确的. net Framework版本解决了这个问题。该网站在4.0版本下运行,它调用的程序集是针对4.5编译的。在安装。net Framework 4.5并将网站升级到4.5之后,一切工作正常。

当方法需要一个我没有指定的参数时,我就遇到了这个问题

我刚刚在一个。net MVC项目中遇到了这个问题。根本原因是NuGet包的版本冲突。我有几个项目的解决方案。每个项目都有一些NuGet包。在一个项目中,我使用了企业库语义日志包的一个版本,而在另外两个项目(引用了第一个项目)中,我使用了同一包的旧版本。它编译时没有错误,但是当我尝试使用这个包时,它给出了一个神秘的“Method not found”错误。

解决办法是从两个项目中删除旧的NuGet包,这样它就只包含在真正需要它的一个项目中。(我也对整个解决方案做了一个干净的重建。)

在我的情况下,根本没有代码更改,突然一个服务器开始得到这个,只有这个异常(所有服务器都有相同的代码,但只有一个开始有问题):

System.MissingMethodException: Method not found: '?'.

栈:

Server stack trace: 
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at myAccountSearch.AccountSearch.searchtPhone(searchtPhoneRequest request)
   at myAccountSearch.AccountSearchClient.myAccountSearch.AccountSearch.searchtPhone(searchtPhoneRequest request)
   at myAccountSearch.AccountSearchClient.searchtPhone(String ID, String HashID, searchtPhone Phone1)
   at WS.MyValidation(String AccountNumber, String PhoneNumber)

我认为这个问题是AppPool被破坏了——我们每天凌晨3点自动回收AppPool,这个问题从凌晨3点开始,然后在第二天凌晨3点自行结束。