Laravel 5.7-作曲家中缺少文件？

Question

I´m trying to setup a fresh install of Laravel with Laradock. Actually, a strange thing happens: An empty page shows in the browser and nginx shows up this error in my console...

PHP message: PHP Fatal error: require(): Failed opening required '/var/www/vendor/composer/../../tests/Database/stubs/MigrationCreatorFakeMigration.php' (include_path='.:/usr/local/lib/php') in /var/www/vendor/composer/autoload_real.php on line 66" while reading response header from upstream, client: 172.19.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://172.19.0.6:9000", host: "-> THE HOST <-"

I can find any reference of this missing file, neither on the Laravel repo.

Any help is appreciated, thanks in advance (:

Answer 1

remove folder vendor then run commands below:

$ composer install
$ composer dump-autoload
$ php artisan optimize
$ php artisan cache:clear
$ php artisan route:cache
$ php artisan view:clear
$ php artisan config:cache
$ php artisan config:clear