Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit[8.4.0, ..., 8.5.11] require php ^7.2 -> your php version (8.3.0) does not satisfy that requirement. - sebastian/exporter[3.0.0, ..., 3.1.2] require php ^7.0 -> your php version (8.3.0) does not satisfy that requirement. - orchestra/testbench[v6.22.0, ..., v6.40.0] require phpunit/phpunit ^8.5.21 || ^9.5.10 -> satisfiable by phpunit/phpunit[8.5.21, ..., 8.5.36, 9.5.10, ..., 9.6.15]. - orchestra/testbench[v6.13.0, ..., v6.21.1] require phpunit/phpunit ^8.4 || ^9.3.3 -> satisfiable by phpunit/phpunit[8.4.0, ..., 8.5.36, 9.3.3, ..., 9.6.15]. - orchestra/testbench[v6.10.0, ..., v6.12.1] require phpunit/phpunit ^8.4 || ^9.3 -> satisfiable by phpunit/phpunit[8.4.0, ..., 8.5.36, 9.3.3, ..., 9.6.15]. - orchestra/testbench[v6.0.0, ..., v6.9.0] require phpunit/phpunit ^8.4 || ^9.0 -> satisfiable by phpunit/phpunit[8.4.0, ..., 8.5.36, 9.3.3, ..., 9.6.15]. - phpunit/phpunit[9.5.25, ..., 9.6.15] require sebastian/exporter ^4.0.5 -> satisfiable by sebastian/exporter[4.0.5]. - phpunit/phpunit[9.4.1, ..., 9.5.24] require sebastian/exporter ^4.0.3 -> satisfiable by sebastian/exporter[4.0.3, 4.0.4, 4.0.5]. - phpunit/phpunit[9.3.3, ..., 9.4.0] require sebastian/exporter ^4.0.2 -> satisfiable by sebastian/exporter[4.0.2, 4.0.3, 4.0.4, 4.0.5]. - phpunit/phpunit[8.5.30, ..., 8.5.36] require sebastian/exporter ^3.1.5 -> satisfiable by sebastian/exporter[3.1.5]. - phpunit/phpunit[8.5.12, ..., 8.5.29] require sebastian/exporter ^3.1.2 -> satisfiable by sebastian/exporter[3.1.2, 3.1.3, 3.1.4, 3.1.5]. - pestphp/pest v2.28.0 conflicts with sebastian/exporter 4.0.5. - pestphp/pest v2.28.0 conflicts with sebastian/exporter 4.0.2. - pestphp/pest v2.28.0 conflicts with sebastian/exporter 3.1.5. - Root composer.json requires pestphp/pest ^2.28 -> satisfiable by pestphp/pest[v2.28.0]. - Root composer.json requires orchestra/testbench 6.* -> satisfiable by orchestra/testbench[v6.0.0, ..., v6.40.0].