call_user_func() expects parameter 1 to be a valid callback, non-static method backend\components\Rbac::checkPermission() should not be called statically
yii migrate 报错怎么解决
Exception 'yii\db\Exception' with message 'SQLSTATE[HY000] [2002] No such file or directory'
in /Users/Rio-hl/Documents/web/eqinxue/vendor/yiisoft/yii2/db/Connection.php:568