无法更新Ruby，导致./launcher rebuild app持续失败

[RBoy]

Use Safe Mode to troubleshoot issues with themes and plugins

Discourse has a “JavaScript Safe Mode”, where any user can use to isolate the root cause of a JavaScript issue caused by plugins, themes or theme components. To access safe mode go to: http://your-site-name/safe-mode for example this is the safe mode for our demo site: https://try.discourse.org/safe-mode [safe mode options] [safe mode is enabled] To exit safe mode simply close your browser tab When entering safe mode you can select between: Disable all themes and theme-components …