Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires psalm/phar ^7.0.0-beta13, found psalm/phar[7.0.0-beta13] but the package is fixed to 5.26.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.