Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit[10.0.0, ..., 10.2.4] require php >=8.1 -> your php version (8.0.26) does not satisfy that requirement. - Root composer.json requires phpunit/phpunit ^10.0.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.2.4]. 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 psalm/plugin-phpunit ^0.15.1 -> satisfiable by psalm/plugin-phpunit[0.15.1, 0.15.2]. - phpunit/phpunit[10.0.0, ..., 10.2.4] require sebastian/diff ^5.0 -> satisfiable by sebastian/diff[5.0.0, 5.0.1, 5.0.2, 5.0.3]. - Conclusion: don't install sebastian/diff 5.0.3 (conflict analysis result) - Root composer.json requires phpunit/phpunit ^10.0.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.2.4]. 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 psalm/plugin-phpunit ^0.15.1 -> satisfiable by psalm/plugin-phpunit[0.15.1, 0.15.2]. - phpunit/phpunit[10.0.0, ..., 10.2.4] require sebastian/diff ^5.0 -> satisfiable by sebastian/diff[5.0.0, 5.0.1, 5.0.2, 5.0.3]. - Conclusion: don't install sebastian/diff 5.0.0 (conflict analysis result) - Root composer.json requires phpunit/phpunit ^10.0.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.2.4]. 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 - phpunit/phpunit[10.0.0, ..., 10.2.4] require php >=8.1 -> your php version (8.0.26) does not satisfy that requirement. - Root composer.json requires phpunit/phpunit ^10.0.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.2.4]. 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 psalm/plugin-phpunit ^0.15.1 -> satisfiable by psalm/plugin-phpunit[0.15.1, 0.15.2]. - phpunit/phpunit[10.0.0, ..., 10.2.4] require sebastian/diff ^5.0 -> satisfiable by sebastian/diff[5.0.0, 5.0.1, 5.0.2, 5.0.3]. - Conclusion: don't install sebastian/diff 5.0.3 (conflict analysis result) - Root composer.json requires phpunit/phpunit ^10.0.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.2.4]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.