Your requirements could not be resolved to an installable set of packages. Problem 1 - jeremykendall/php-domain-parser[dev-master, 6.0.0, ..., 6.1.2] require ext-intl * -> it is missing from your system. Install or enable PHP's intl extension. - facebook/php-capi-param-builder 0.0.1-dev requires jeremykendall/php-domain-parser ^6.0 -> satisfiable by jeremykendall/php-domain-parser[6.0.0, ..., 6.x-dev (alias of dev-master)]. - jeremykendall/php-domain-parser 6.x-dev is an alias of jeremykendall/php-domain-parser dev-master and thus requires it to be installed too. - Root composer.json requires facebook/php-capi-param-builder 0.0.1-dev -> satisfiable by facebook/php-capi-param-builder[0.0.1-dev]. To enable extensions, verify that they are enabled in your .ini files: - /usr/local/etc/php/conf.d/docker-php-ext-sodium.ini You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode. Alternatively, you can run Composer with `--ignore-platform-req=ext-intl` to temporarily ignore these required extensions.

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