Your requirements could not be resolved to an installable set of packages. Problem 1 - sebastian/diff[4.0.0, ..., 4.0.1] require php ^7.3 -> your php version (8.2.14) does not satisfy that requirement. - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - vimeo/psalm 5.21.1 requires sebastian/diff ^4.0 || ^5.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0]. - You can only install one version of a package, so only one of these can be installed: sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0, 6.0.0]. - phpunit/phpunit 11.0.1 requires sebastian/diff ^6.0 -> satisfiable by sebastian/diff[6.0.0]. - Root composer.json requires vimeo/psalm ^5.21.1 -> satisfiable by vimeo/psalm[5.21.1].

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - You can only install one version of a package, so only one of these can be installed: nikic/php-parser[v4.16.0, v4.17.0, v4.17.1, v4.18.0, v5.0.0]. - phpunit/php-code-coverage 11.0.0 requires nikic/php-parser ^5.0 -> satisfiable by nikic/php-parser[v5.0.0]. - vimeo/psalm 5.21.1 requires nikic/php-parser ^4.16 -> satisfiable by nikic/php-parser[v4.16.0, v4.17.0, v4.17.1, v4.18.0]. - vimeo/psalm 5.21.1 conflicts with nikic/php-parser v4.17.0. - phpunit/phpunit 11.0.1 requires phpunit/php-code-coverage ^11.0 -> satisfiable by phpunit/php-code-coverage[11.0.0]. - Root composer.json requires vimeo/psalm ^5.21.1 -> satisfiable by vimeo/psalm[5.21.1].

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - phpunit/phpunit 11.0.1 requires php >=8.2 -> your php version (8.1.27) does not satisfy that requirement.

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - You can only install one version of a package, so only one of these can be installed: nikic/php-parser[v4.16.0, v4.17.0, v4.17.1, v4.18.0, v5.0.0]. - phpunit/php-code-coverage 11.0.0 requires nikic/php-parser ^5.0 -> satisfiable by nikic/php-parser[v5.0.0]. - vimeo/psalm 5.21.1 requires nikic/php-parser ^4.16 -> satisfiable by nikic/php-parser[v4.16.0, v4.17.0, v4.17.1, v4.18.0]. - vimeo/psalm 5.21.1 conflicts with nikic/php-parser v4.17.0. - phpunit/phpunit 11.0.1 requires phpunit/php-code-coverage ^11.0 -> satisfiable by phpunit/php-code-coverage[11.0.0]. - Root composer.json requires vimeo/psalm ^5.21.1 -> satisfiable by vimeo/psalm[5.21.1].

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - phpunit/phpunit 11.0.1 requires php >=8.2 -> your php version (8.1.27) does not satisfy that requirement.

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - sebastian/diff[4.0.0, ..., 4.0.1] require php ^7.3 -> your php version (8.3.2) does not satisfy that requirement. - Root composer.json requires phpunit/phpunit ^11.0.1 -> satisfiable by phpunit/phpunit[11.0.1]. - vimeo/psalm 5.21.1 requires sebastian/diff ^4.0 || ^5.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0]. - You can only install one version of a package, so only one of these can be installed: sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0, 6.0.0]. - phpunit/phpunit 11.0.1 requires sebastian/diff ^6.0 -> satisfiable by sebastian/diff[6.0.0]. - Root composer.json requires vimeo/psalm ^5.21.1 -> satisfiable by vimeo/psalm[5.21.1].