进入后台提示“Server Error in '/' Application”请高手解决！

我用的空间是“苹果动力”的M型空间,空间支持ASP.NET。可是进入后台就提示这个错误，请大家帮忙解决一下，我应该怎么办？
Server Error in '/' Application.
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Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".









Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's configuration tag to point to a custom error page URL.

这个是asp.net 的一个常见的错误，可以在web.config里面在标签内加入，那样就可以显示真正的错误信息了，有了详细的错误信息才好找问题的根源。