应用程序脱机：This application is currently offline. To enable the application, remove the app_offline.htm

应用程序脱机：This application is currently offline. To enable the application, remove the app_offline.htm file from the application root directory.解决办法。

解决办法：将网站目录下的app_offline.htm，删除即可。

删除后，重新运行即可！