Your requirements could not be resolved to an installable set of packages. Problem 1 - platine-php/docx-template dev-develop requires ext-zip * -> it is missing from your system. Install or enable PHP's zip extension. - platine-php/docx-template 1.0.x-dev is an alias of platine-php/docx-template dev-develop and thus requires it to be installed too. - Root composer.json requires platine-php/docx-template 1.0.x-dev -> satisfiable by platine-php/docx-template[1.0.x-dev (alias of dev-develop)]. To enable extensions, verify that they are enabled in your .ini files: - C:\tools\php\php.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-zip` to temporarily ignore these required extensions.