我也遇到了这个问题: Fatal error: Uncaught PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'fecshop.extensions' doesn't exist in /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2/db/Command.php:1290 Stack trace: #0 /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2/db/Command.php(1290): PDOStatement->execute() #1 /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2/db/Command.php(1158): yii\db\Command->internalExecute('SELECT FROM ...') #2 /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2/db/Command.php(399): yii\db\Command->queryInternal('fetchAll', NULL) #3 /data/htdocs/fecshop/fecmall/common/config/bootstrap.php(34): yii\db\Command->queryAll() #4 /data/htdocs/fecshop/fecmall/appfront/web/index.php(24): require('/data/htdocs/fe...') #5 {main} Next yii\db\Exception: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'fecshop.extensions' doesn't exist The SQL being executed was: SELECT FROM extensions where status=1 AND installed_status=1 ORDER BY priority ASC in /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2 in /data/htdocs/fecshop/fecmall/vendor/yiisoft/yii2/db/Schema.php on line 674