Your requirements could not be resolved to an installable set of packages. Problem 1 - behat/behat[v3.0.5, ..., v3.0.15] require symfony/config ~2.3 -> found symfony/config[v2.3.0, ..., v2.8.52] but it conflicts with your root composer.json require (7.0.*). - behat/behat v3.1.0 requires symfony/config ~2.3|~3.0 -> found symfony/config[v2.3.0, ..., v2.8.52, v3.0.0, ..., v3.4.47] but it conflicts with your root composer.json require (7.0.*). - behat/behat[v3.2.0, ..., v3.4.1] require symfony/config ~2.3||~3.0 -> found symfony/config[v2.3.0, ..., v2.8.52, v3.0.0, ..., v3.4.47] but it conflicts with your root composer.json require (7.0.*). - behat/behat[v3.4.2, ..., v3.5.0] require symfony/config ~2.3||~3.0||~4.0 -> found symfony/config[v2.3.0, ..., v2.8.52, v3.0.0, ..., v3.4.47, v4.0.0, ..., v4.4.44] but it conflicts with your root composer.json require (7.0.*). - behat/behat[3.6.0, ..., v3.7.0] require symfony/config ^2.7.51 || ^3.0 || ^4.0 || ^5.0 -> found symfony/config[v2.7.51, ..., v2.8.52, v3.0.0, ..., v3.4.47, v4.0.0, ..., v4.4.44, v5.0.0, ..., v5.4.31] but it conflicts with your root composer.json require (7.0.*). - behat/behat[v3.8.0, ..., v3.8.1] require symfony/config ^4.4 || ^5.0 -> found symfony/config[v4.4.0, ..., v4.4.44, v5.0.0, ..., v5.4.31] but it conflicts with your root composer.json require (7.0.*). - behat/behat[v3.9.0, ..., v3.13.0] require symfony/config ^4.4 || ^5.0 || ^6.0 -> found symfony/config[v4.4.0, ..., v4.4.44, v5.0.0, ..., v5.4.31, v6.0.0, ..., v6.4.0] but it conflicts with your root composer.json require (7.0.*). - Root composer.json requires behat/behat ^3.0.5 -> satisfiable by behat/behat[v3.0.5, ..., v3.13.0].

Process completed with exit code 2.