In Application.php line 670:
Class 'Facade\Ignition\IgnitionServiceProvider' not found
ー＞このコマンド
composer dump-autoload
ブラウザで イカエラー
No application encryption key has been specified.
→ .env内の記述が不十分
key generateとphp artisan config:cache 両方やる
https://qiita.com/ponsuke0531/items/197c76fcb9300d7c5f36