我是新手，按照步骤来的，访问http://localhost/moblog/web/index.php报错:Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at admin@example.com to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Apache/2.4.9 (Win32) PHP/5.5.12 Server at localhost Port 80