CircleCI上的“ php artisan migration”导致“找不到驱动程序”

Question

我想在Circle CI上运行我的Laravel项目。但是我遇到这个错误：

#!/bin/bash -eo pipefail
php artisan migrate

In Connection.php line 664:

  could not find driver (SQL: select * from information_schema.tables where t  
  able_schema = test_db and table_name = migrations)                           


In Connector.php line 67:

  could not find driver  


Exited with code 1