Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires driftingly/rector-laravel ^0.0, found driftingly/rector-laravel[dev-feature/throw-exception-to-class-string-and-parameters, dev-feature/new-instance-to-container-get, dev-feature/where-to-where-like-dev, dev-feature/declare-type-configs, dev-new-rule-command, dev-main, dev-samsonasik-patch-1, 0.10.0, ..., 0.41.0, 1.0.0, ..., 1.2.6, 2.0.0, 2.0.1, 2.0.2] but it does not match the constraint. Problem 2 - Root composer.json requires rector/rector ^0.0, found rector/rector[dev-main, v0.1.0, ..., 0.19.8, 1.0.0, ..., 1.2.10, 2.0.0-rc1, ..., 2.0.8] but it does not match the constraint. Problem 3 - Root composer.json requires jamesmills/laravel-timezone dev-master -> satisfiable by jamesmills/laravel-timezone[dev-master]. - jamesmills/laravel-timezone dev-master requires laravel/framework 5.6.*|5.7.*|5.8.*|^6|^7|^8|^9|^10.0 -> found laravel/framework[v5.6.0, ..., 5.8.x-dev, v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev] but it conflicts with your root composer.json require (^11.41). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.