# Required composer package cannot be autoloaded

Some modules required custom composer packages. And thats fine, our modules do support composer packages. However it can be the case that after you required the package it wont load.

When using a class of the package, you may encounter the error `Mollie\Api\MollieApiClient not found.` 

To fix that issue, you can run the artisan command `php artisan module:update` to reload all composer dependencies. After this command has run for some minutes, please try again using your custom package.