Fatal error: Uncaught Error: Class 'yii\db\ActiveQuery' not found in /opt/lampp/htdocs/tienda.apirest/modules17/core/models/SiatUnidadMedidaQuery.php:10 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/tienda.apirest/modules17/core/models/SiatUnidadMedidaQuery.php on line 10