Key path "file:///app/storage/oauth-public.key" does not exist or is not readable (View: /app/resources/views/includes/partials/logged-in-as.blade.php) code example

Example: Key path "file:///home/user/projectname/storage/oauth-public.key" does not exist or is not readable

#Install passport
composer require laravel/passport

#Register the service provider in config/app.php
Laravel\Passport\PassportServiceProvider::class,

#Run the migrations
php artisan migrate

#Generate key
php artisan passport:install