Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench 10.* -> satisfiable by orchestra/testbench[v10.0.0, v10.1.0]. - Root composer.json requires pestphp/pest ^2.35 -> satisfiable by pestphp/pest[v2.35.0, v2.35.1, v2.36.0]. - orchestra/testbench v10.0.0 requires phpunit/phpunit ^11.5.3 -> satisfiable by phpunit/phpunit[11.5.3, ..., 11.5.11]. - pestphp/pest v2.35.0 conflicts with phpunit/phpunit 11.5.11. - pestphp/pest v2.35.0 conflicts with phpunit/phpunit 11.5.10. - pestphp/pest v2.35.0 conflicts with phpunit/phpunit 11.5.8. - Conclusion: don't install pestphp/pest v2.35.1 (conflict analysis result) - Conclusion: don't install pestphp/pest v2.36.0 (conflict analysis result) - Conclusion: don't install orchestra/testbench v10.1.0 (conflict analysis result)