Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpdocumentor/filesystem ^2.0@dev, found phpdocumentor/filesystem[1.x-dev] but it does not match your constraint and is therefore not installable. Make sure you fix the constraint as packages installed from symlinked path repos are updated even in partial updates and the one from the lock file can thus not be used.