Problem 1 - The requested PHP extension ext-pthreads ~3.2.0 is missing from your system. Install or enable PHP's pthreads extension. Problem 2 - The requested PHP extension ext-sockets * is missing from your system. Install or enable PHP's sockets extension. Problem 3 - The requested PHP extension ext-yaml >=2.0.0 is missing from your system. Install or enable PHP's yaml extension. Problem 4 - Installation request for pocketmine/classloader 0.1.0 -> satisfiable by pocketmine/classloader[0.1.0]. - pocketmine/classloader 0.1.0 requires ext-pthreads ~3.2.0 -> the requested PHP extension pthreads is missing from your system. Problem 5 - Installation request for pocketmine/log-pthreads 0.1.0 -> satisfiable by pocketmine/log-pthreads[0.1.0]. - pocketmine/log-pthreads 0.1.0 requires ext-pthreads ~3.2.0 -> the requested PHP extension pthreads is missing from your system. Problem 6 - Installation request for pocketmine/raklib 0.12.8 -> satisfiable by pocketmine/raklib[0.12.8]. - pocketmine/raklib 0.12.8 requires ext-pthreads ~3.2.0 -> the requested PHP extension pthreads is missing from your system. Problem 7 - Installation request for pocketmine/snooze 0.1.2 -> satisfiable by pocketmine/snooze[0.1.2]. - pocketmine/snooze 0.1.2 requires ext-pthreads >=3.1.7dev -> the requested PHP extension pthreads is missing from your system. To enable extensions, verify that they are enabled in your .ini files: - D:\Programs\xampp\php\php.ini You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode. after composer install