After the upgrade of grafana-5 to 7.4, an error will be reported when visiting 3000 port

If you’re seeing this Grafana has failed to load its application files

  1. This could be caused by your reverse proxy settings.
  2. If you host grafana under subpath make sure your grafana.ini root_url setting includes subpath. If notusing a reverse proxy make sure to set serve_from_sub_path to true.
  3. If you have a local dev build make sure you build frontend using: yarn start, yarn start:hot, or yarnbuild
  4. Sometimes restarting grafana-server can help
  5. Check if you are using a non-supported browser. For more information, refer to the list of supported browsers.

The original grafana-5 can be accessed by using Yum install - y grafana-7.4.2-1.x86_ After 64.rpm, the service starts normally, indicating that the upgrade is successful. Grafana - V can view the version 7 3000 port startup
Trouble has encountered this problem of friends to help, please

Hi,

What is reported in the logs ? Do you have any proxy in your setup ?

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