Application Installation Failed

You may be bothered by application installation failed, here are some tips:

1. Nothing output in the dashboard installation monitor. This may be caused by dpkg lock. You can try the following steps: connect to server via SSH, type box fix dpkg under root.
2. Installation finished, but the dashboard link displayed as a 404 error. This may be caused by Nginx error. You can easily reinstall this application to solve it.
3. Installation finished, but the dashboard link displayed as 502 error, service is active in the service management center. Please try Ctrl + F5 to clear browser cache.
4. Installation finished, but the dashboard link displayed as 502 error, service is NOT active in the service management center. This may be caused by software installation failed. This may be caused by a bad internet connection. You can try to reinstall it with a proxy. Sometimes the application download link may also fail. You can only try it later.
5. Others: If the method above all not works for you, please run box install APP NAME and give me your installation log in /srv/dashboard/db/output.log for further analyzation.