Your requirements could not be resolved to an installable set of packages. Problem 1 - fsi/data dev-master requires php ^8.1 -> your php version (7.4.26) does not satisfy that requirement. - fsi/data 1.3.x-dev is an alias of fsi/data dev-master and thus requires it to be installed too. - Root composer.json requires fsi/data ^1.0.2|^1.0.2@dev -> satisfiable by fsi/data[1.3.x-dev (alias of dev-master)].