PHP Fatal error: Class 'Vinkla\Hashids\HashidsServiceProvider' not found - php

Question

I was developing on my dev machine using Homestead. I committed both my composer.lock and composer.json. During this branch, I added Hashid and LaravelDebugBar to composer for development purposes. Everything worked fine on the development machine.
Once I pulled from master to my production machine, and ran composer update, and I get the following error:
When I type in php artisan migrate or composer update, I get the following error:
PHP Fatal error: Class 'Vinkla\Hashids\HashidsServiceProvider' not found in /var/www/schedulizer/vendor/laravel/framework/src/Illuminate/Foundation/ProviderRepository.php on line 146
[Symfony\Component\Debug\Exception\FatalErrorException]
Class 'Vinkla\Hashids\HashidsServiceProvider' not found
I tried composer clear-compiled, composer dump-autoload tried manually requiring the Hashid package, and removing the offending lines in config/app.php and running composer update
I checked the service provider, and it is in my config/app.php..

Answer 1

Instead of running composer update, run composer install on the production machine instead; this will bypass the pre-update hooks that Laravel runs.
Source
If they were dev requirements, then you can conditionally add them to your service providers list by adding them to your AppServiceProvider like such:
// AppServiceProvider.php
public function register()
{
/* ... */
if ($this->app->environment('production')) {
// $this->app->register('');
} else {
$this->app->register('Vinkla\Hashids\HashidsServiceProvider');
}
}
Source

Answer 2

First of all, check if Vinkla\Hashids\HashidsServiceProvider exists. Also, double check all letter (it's always better to copy-paste namespace from documentation). Then try to run this command:
composer dumpauto
If it will not help, run this command:
composer dumpauto -o

Answer 3

I tried php artisan config:clear then I ran composer update and composer install but I got the same error message.
in my case, the problem was in bootstrap/cache/config.php
So I deleted the file manually and mission accomplished.