Answers for "auth login not found in laravel"

php artisan make:auth Command "make:auth" is not defined.

composer require laravel/ui
php artisan ui vue --auth
php artisan migrate

Route::auth(); giving error in laravel 7

Do this step from the upgrade guide 
https://laravel.com/docs/7.x/upgrade#authentication-scaffolding

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composer require laravel/ui "^2.0"