Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires PHP extension ext-swoole ^5.1.8|^6.1.3 but it is missing from your system. Install or enable PHP's swoole extension. Alternatively you can require one of these packages that provide the extension (or parts of it): Keep in mind that the suggestions are automated and may not be valid or safe to use - swoole/swoole Swoole is an event-driven, asynchronous, coroutine-based concurrency library with high performance f To enable extensions, verify that they are enabled in your .ini files: - /etc/opt/remi/php85/php.ini - /etc/opt/remi/php85/php.d/10-opcache.ini - /etc/opt/remi/php85/php.d/15-xdebug.ini - /etc/opt/remi/php85/php.d/20-bcmath.ini - /etc/opt/remi/php85/php.d/20-bz2.ini - /etc/opt/remi/php85/php.d/20-calendar.ini - /etc/opt/remi/php85/php.d/20-ctype.ini - /etc/opt/remi/php85/php.d/20-curl.ini - /etc/opt/remi/php85/php.d/20-dom.ini - /etc/opt/remi/php85/php.d/20-exif.ini - /etc/opt/remi/php85/php.d/20-fileinfo.ini - /etc/opt/remi/php85/php.d/20-ftp.ini - /etc/opt/remi/php85/php.d/20-gettext.ini - /etc/opt/remi/php85/php.d/20-iconv.ini - /etc/opt/remi/php85/php.d/20-intl.ini - /etc/opt/remi/php85/php.d/20-mbstring.ini - /etc/opt/remi/php85/php.d/20-pdo.ini - /etc/opt/remi/php85/php.d/20-pgsql.ini - /etc/opt/remi/php85/php.d/20-phar.ini - /etc/opt/remi/php85/php.d/20-simplexml.ini - /etc/opt/remi/php85/php.d/20-sodium.ini - /etc/opt/remi/php85/php.d/20-sqlite3.ini - /etc/opt/remi/php85/php.d/20-tokenizer.ini - /etc/opt/remi/php85/php.d/20-xml.ini - /etc/opt/remi/php85/php.d/20-xmlwriter.ini - /etc/opt/remi/php85/php.d/20-xsl.ini - /etc/opt/remi/php85/php.d/30-pdo_pgsql.ini - /etc/opt/remi/php85/php.d/30-pdo_sqlite.ini - /etc/opt/remi/php85/php.d/30-xmlreader.ini - /etc/opt/remi/php85/php.d/30-zip.ini - /etc/opt/remi/php85/php.d/40-apcu.ini - /etc/opt/remi/php85/php.d/40-ast.ini - /etc/opt/remi/php85/php.d/40-igbinary.ini - /etc/opt/remi/php85/php.d/40-msgpack.ini - /etc/opt/remi/php85/php.d/50-memcached.ini - /etc/opt/remi/php85/php.d/50-mongodb.ini - /etc/opt/remi/php85/php.d/50-redis.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-swoole` to temporarily ignore these required extensions.