raspberry pi 3

[nihil777]

I have raspberry 3. installed composer. I run php composer.phar require norgul\xmpp-php, I get "Installation failed, deleting ./composer.json. In RequireCommand.php line 225: No composer.json present in the current directory (./composer.json), this may be the cause of the following exception. In PackageDiscoveryTrait.php line 376: Could not find a matching version of package norgulxmpp-php. Check the package spelling, your version constraint and that the package is available in a stability which matches your minimum-stability (stable). " I run php composer.phar create-project norgul/xmpp-php, I get "Your requirements could not be resolved to an installable set of packages. Problem 1

• Root composer.json requires friendsofphp/php-cs-fixer 3.0.x-dev (exact version match), found friendsofphp/php-cs-fixer[dev-master, v0.1.0, ..., v0.5.7, v1.0, ..., v1.13.3, v2.0.0-alpha, ..., v2.19.3, v3.0.0-beta.1, ..., v3.26.1] but it does not match the constraint." What should I do to install xmpp-php on Raspberry Pi 3?