访问IIS服务器时报错了，请问怎么解决（IIS 7.0）最好有详细说明 谢谢。

点击网页时 显示如下错误：
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.









请问怎么解决？
请详细说明谢谢！

看服务器iis日志 找问题 解决

将相关文件夹的访问权限设置为可读