Your requirements could not be resolved to an installable set of packages. Problem 1 - kphoen/rulerz[0.21.0, ..., 0.21.1] require symfony/property-access ~3.0|~4.0 -> satisfiable by symfony/property-access[v4.0.0, ..., v4.0.15]. - kphoen/rulerz[0.19.3, ..., 0.20.5] require symfony/property-access ~2.3|~3.0 -> found symfony/property-access[v2.3.0, ..., v2.8.52, v3.0.0, ..., v3.4.47] but these were not loaded, likely because it conflicts with another require. - symfony/property-access[v4.0.0, ..., v4.0.15] require php ^7.1.3 -> your php version (8.1.27) does not satisfy that requirement. - Root composer.json requires kphoen/rulerz ~0.19,>=0.19.3|^1.0 -> satisfiable by kphoen/rulerz[0.19.3, ..., 0.21.1].