Deprecated: Method ReflectionParameter::getClass()

[chisumo2016]

I am getting the following message when I run the below command . How do you fix this kind of problem
❯ php artisan serve

Deprecated: Method ReflectionParameter::getClass() is deprecated in /Users/os/Documents/projects/laravel-ecommerce-example/vendor/laravel/framework/src/Illuminate/Container/Container.php on line 811