系统。方法未找到?

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。

2013-03-30 19:19:56

其他回答

也有可能问题出在报告丢失的方法的参数或返回类型上，而“丢失”方法本身没有问题。

这就是我的情况，误导性的信息让我花了更长的时间来解决问题。事实证明，用于参数类型的程序集在GAC中有一个较旧的版本，但由于所使用的版本编号方案的更改，旧版本实际上具有更高的版本号。从GAC中删除旧版本/更高版本可以解决这个问题。

2017-09-05 21:16:15

我刚刚有这个问题，原来是因为我引用了以前版本的DLL从我的UI项目。因此，编译时它是快乐的。但在运行时，它使用的是以前版本的DLL。

在假设您需要重新构建/清理/重新部署解决方案之前，请检查所有其他项目的参考资料。

2016-04-06 13:36:08

当DLL的旧版本仍然在某个地方徘徊时，就会出现这个问题。确保部署了最新的程序集，并且某些文件夹中没有隐藏重复的旧程序集。最好的办法是删除所有构建的项目，然后重新构建/重新部署整个解决方案。

2011-11-09 02:10:08