Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires typo3/testing-framework ^7.0.5 -> satisfiable by typo3/testing-framework[7.0.5]. - typo3/testing-framework 7.0.5 requires phpunit/phpunit ^9.5.25 || ^10.1 -> found phpunit/phpunit[9.5.25, ..., 9.6.19, 10.1.0, ..., 10.5.26] but it conflicts with your root composer.json require (^11.2.6). Problem 2 - Root composer.json requires phpunit/phpunit ^11.2.6 -> satisfiable by phpunit/phpunit[11.2.6]. - ssch/typo3-rector v2.6.2 requires nikic/php-parser ^4.18.0 -> satisfiable by nikic/php-parser[v4.18.0, v4.19.0, v4.19.1]. - You can only install one version of a package, so only one of these can be installed: nikic/php-parser[v4.3.0, ..., v4.19.1, v5.0.0, v5.0.1, v5.0.2, v5.1.0]. - phpunit/php-code-coverage[11.0.0, ..., 11.0.5] require nikic/php-parser ^5.0 -> satisfiable by nikic/php-parser[v5.0.0, v5.0.1, v5.0.2, v5.1.0]. - phpunit/phpunit 11.2.6 requires phpunit/php-code-coverage ^11.0 -> satisfiable by phpunit/php-code-coverage[11.0.0, ..., 11.0.5]. - Root composer.json requires ssch/typo3-rector ^2.6.2 -> satisfiable by ssch/typo3-rector[v2.6.2].