Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laminas/laminas-cache ^4.1.0 -> satisfiable by laminas/laminas-cache[4.1.0]. - laminas/laminas-cache 4.1.0 requires webmozart/assert ^1.11 -> found webmozart/assert[1.11.0, 1.12.0, 1.12.1] but it conflicts with your root composer.json require (^2.0). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.