How can I solve “laravel/horizon v1.1.0 requires ext-pcntl * -> the requested PHP extension pcntl is missing from your system”?

Question

When I run composer install on command promp, there exist error like this :

  Problem 1
    - Installation request for laravel/horizon v1.1.0 ->         


        

Answer 1

install horizon this way :

composer require laravel/horizon --ignore-platform-reqs

then run

php artisan horizon:install