Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laminas/laminas-http ^2.20 -> satisfiable by laminas/laminas-http[2.20.0]. - laminas/laminas-http 2.20.0 requires laminas/laminas-validator ^2.15 -> found laminas/laminas-validator[2.15.0, ..., 2.64.1] but it conflicts with your root composer.json require (^3.0.0). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.