Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 12.0.4 -> satisfiable by phpunit/phpunit[12.0.4]. - phpunit/phpunit 12.0.4 requires php >=8.3 -> your php version (8.1.31) does not satisfy that requirement. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 12.0.4 -> satisfiable by phpunit/phpunit[12.0.4]. - phpunit/phpunit 12.0.4 requires php >=8.3 -> your php version (8.1.31) does not satisfy that requirement. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 12.0.4 -> satisfiable by phpunit/phpunit[12.0.4]. - Root composer.json requires vimeo/psalm ^5.0.0 -> satisfiable by vimeo/psalm[5.0.0, ..., 5.26.1]. - phpunit/phpunit 12.0.4 requires sebastian/diff ^7.0.0 -> satisfiable by sebastian/diff[7.0.0]. - vimeo/psalm[5.0.0, ..., 5.4.0] require sebastian/diff ^4.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6]. - vimeo/psalm[5.5.0, ..., 5.21.1] require sebastian/diff ^4.0 || ^5.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1]. - vimeo/psalm[5.22.0, ..., 5.26.1] require sebastian/diff ^4.0 || ^5.0 || ^6.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1, 6.0.0, 6.0.1, 6.0.2]. - You can only install one version of a package, so only one of these can be installed: sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1, 6.0.0, 6.0.1, 6.0.2, 7.0.0]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 12.0.4 -> satisfiable by phpunit/phpunit[12.0.4]. - Root composer.json requires vimeo/psalm ^5.0.0 -> satisfiable by vimeo/psalm[5.0.0, ..., 5.26.1]. - phpunit/phpunit 12.0.4 requires sebastian/diff ^7.0.0 -> satisfiable by sebastian/diff[7.0.0]. - vimeo/psalm[5.0.0, ..., 5.4.0] require sebastian/diff ^4.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6]. - vimeo/psalm[5.5.0, ..., 5.21.1] require sebastian/diff ^4.0 || ^5.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1]. - vimeo/psalm[5.22.0, ..., 5.26.1] require sebastian/diff ^4.0 || ^5.0 || ^6.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1, 6.0.0, 6.0.1, 6.0.2]. - You can only install one version of a package, so only one of these can be installed: sebastian/diff[4.0.0, ..., 4.0.6, 5.0.0, ..., 5.1.1, 6.0.0, 6.0.1, 6.0.2, 7.0.0]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 12.0.4 -> satisfiable by phpunit/phpunit[12.0.4]. - phpunit/phpunit 12.0.4 requires php >=8.3 -> your php version (8.0.30) does not satisfy that requirement. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.