idea版本更换后,或者gradle刷不到最新包,等等诡异问题,直接清除缓存、完全卸载idea,重装立马搞定删除以下目录: Config: ~/Library/Preferences/IdeaIC13 System: ~/Library/Caches/IdeaIC13 Plugins: ~/Library/Application Support/IdeaIC13 Logs: ~/Library/Logs/IdeaIC13