Your requirements could not be resolved to an installable set of packages. Problem 1 - Conclusion: don't install phpunit/phpunit[11.2.3] | install one of phpunit/php-code-coverage[11.0.5], sebastian/complexity[4.0.1] (conflict analysis result) - Conclusion: don't install phpunit/phpunit 11.0.0 (conflict analysis result) - Conclusion: don't install phpunit/phpunit[11.2.7] | install one of phpunit/php-code-coverage[11.0.5], sebastian/complexity[4.0.1] (conflict analysis result) - Conclusion: don't install phpunit/phpunit 11.2.3 (conflict analysis result) - Conclusion: don't install phpunit/phpunit[11.0.0] | install one of phpunit/php-code-coverage[11.0.0, 11.0.5], sebastian/complexity[4.0.1] (conflict analysis result) - Conclusion: don't install phpunit/phpunit 11.3.1 (conflict analysis result) - Conclusion: don't install phpunit/phpunit 11.2.7 (conflict analysis result) - Root composer.json requires psalm/plugin-phpunit ^0.19.0 -> satisfiable by psalm/plugin-phpunit[0.19.0]. - Root composer.json requires vimeo/psalm ^5.25 -> satisfiable by vimeo/psalm[5.25.0, 5.26.0, 5.26.1, 5.x-dev]. - phpunit/phpunit[11.5.2, ..., 11.5.x-dev] require phpunit/php-code-coverage ^11.0.8 -> satisfiable by phpunit/php-code-coverage[11.0.8, 11.0.x-dev]. - phpunit/phpunit[11.4.2, ..., 11.5.1] require phpunit/php-code-coverage ^11.0.7 -> satisfiable by phpunit/php-code-coverage[11.0.7, 11.0.8, 11.0.x-dev]. - phpunit/phpunit[11.3.5, ..., 11.4.1] require phpunit/php-code-coverage ^11.0.6 -> satisfiable by phpunit/php-code-coverage[11.0.6, 11.0.7, 11.0.8, 11.0.x-dev]. - phpunit/php-code-coverage[11.0.6, ..., 11.0.x-dev] require sebastian/complexity ^4.0.1 -> satisfiable by sebastian/complexity[4.0.1, 4.0.x-dev]. - Conclusion: don't install phpunit/phpunit[11.3.2] | install sebastian/complexity[4.0.1] (conflict analysis result) - Conclusion: don't install sebastian/complexity 4.0.1 (conflict analysis result) - Root composer.json requires phpunit/phpunit ^11.0.0 -> satisfiable by phpunit/phpunit[11.0.0, ..., 11.5.x-dev]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.