preload error: the name is already in use

[stevenyangecho]

`[INFO] include: /project/bootstrap/cache/laravelfly_preload.php

Fatal error: Cannot declare class Monolog\Handler\AbstractHandler, because the name is already in use in /project/bootstrap/\cache/laravelfly_preload.php on line 16140`

[scil]

It's fixed, update and then delete bootstrap/cache/laravelfly_preload.php

[stevenyangecho]

updated,and run composer update. composer dumpautoload and deleted bootstrap/cache/laravelfly_preload.php.
and...still wrong..
Fatal error: Cannot declare class Monolog\Handler\AbstractHandler, because the name is already in use in /project/bootstrap/cache/laravelfly_preload.php on line 18869

[scil]

which mode do you use, Simple or Map?
You can try to set 'compile' => false in fly.conf.php

[stevenyangecho]

I use the simple mode.
and yes. set compile=>false,then its ok.
i'm use laravel 5.5.40