When I run
composer install on command promp, there exist error like this :
Problem 1 - Installation request for laravel/horizon v1.1.0 -> satisfiable by laravel/horizon[v1.1.0]. - laravel/horizon v1.1.0 requires ext-pcntl * -> the requested PHP extension pcntl is missing from your system. To enable extensions, verify that they are enabled in your .ini files: - C:\xampp-7.1\php\php.ini You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
How can I solve this error?