Outdated.

[BonBonSlick]

composer

"require": {
    "php": "^7.2",
    "ext-curl": "*",
    "ext-dom": "*",
    "ext-iconv": "*",
    "ext-json": "*",
    "ext-pdo": "*",
    "ext-mbstring": "*",
    "beberlei/doctrineextensions": "^1.0",
    "debril/rss-atom-bundle": "^4.2",
    "deployer/deployer": "^6.1",
    "doctrine/cache": "^1.7",
    "doctrine/dbal": "^2.7",
    "doctrine/doctrine-bundle": "^1.6.10",
    "doctrine/doctrine-migrations-bundle": "^1.3",
    "doctrine/orm": "^2.5.11",
    "fig/link-util": "^1.0",
    "fzaninotto/faker": "^1.7",
    "gedmo/doctrine-extensions": "^2.4",
    "google/recaptcha": "^1.1",
    "happyr/doctrine-specification": "^0.7.2",
    "machy8/google-closure-compiler": "^1.0",
    "mathiasverraes/classfunctions": "^1.1",
    "nelmio/api-doc-bundle": "^3.0",
    "nelmio/cors-bundle": "^1.5",
    "nesbot/carbon": "^1.24",
    "ocramius/proxy-manager": "^2.2",
    "php-amqplib/rabbitmq-bundle": "^1.14",
    "php-http/guzzle6-adapter": "^1.1",
    "predis/predis": "^1.1",
    "prooph/event-sourcing": "^5.6",
    "prooph/event-store": "^7.3",
    "prooph/event-store-bus-bridge": "^3.2",
    "prooph/event-store-http-middleware": "^0.2.0",
    "prooph/event-store-symfony-bundle": "^0.5.0",
    "prooph/pdo-event-store": "^1.9",
    "psr/cache": "~1.0",
    "psr/link": "^1.0",
    "psr/log": "^1.0",
    "psr/simple-cache": "^1.0",
    "ramsey/uuid": "^3.7",
    "react/cache": "^0.4.2",
    "react/event-loop": "^0.5.2",
    "react/http": "^0.8.3",
    "react/promise": "^2.7",
    "react/socket": "^0.8.11",
    "react/stream": "^0.7.7",
    "sensiolabs/security-checker": "^4.1",
    "sentry/sentry-symfony": "^2.0",
    "snc/redis-bundle": "^2.0",
    "symfony/asset": "^4.0",
    "symfony/cache": "^4.0",
    "symfony/config": "^4.1",
    "symfony/console": "^4.1",
    "symfony/debug-pack": "^1.0",
    "symfony/dependency-injection": "^4.1",
    "symfony/dom-crawler": "^4.0",
    "symfony/event-dispatcher": "^4.1",
    "symfony/filesystem": "^4.1",
    "symfony/finder": "^4.1",
    "symfony/flex": "^1.0",
    "symfony/http-foundation": "~4.1",
    "symfony/lts": "^4@dev",
    "symfony/messenger": "^4.1",
    "symfony/options-resolver": "^4.0",
    "symfony/psr-http-message-bridge": "^1.0",
    "symfony/requirements-checker": "^1.1",
    "symfony/routing": "^4.1",
    "symfony/security": "^4.1",
    "symfony/security-acl": "^3.0",
    "symfony/security-bundle": "^4.0",
    "symfony/security-core": "^4.1",
    "symfony/security-guard": "^4.1",
    "symfony/security-http": "^4.1",
    "symfony/serializer": "^4.1",
    "symfony/swiftmailer-bundle": "^3.1",
    "symfony/templating": "^4.1",
    "symfony/translation": "4.0.2",
    "symfony/twig-bundle": "^4.0",
    "symfony/validator": "^4.0",
    "symfony/webpack-encore-pack": "^1.0",
    "symfony/yaml": "^4.0",
    "vertigolabs/doctrine-full-text-postgres-bundle": "^1.0",
    "zendframework/zend-diactoros": "^1.8",
    "zendframework/zend-mail": "^2.10",
    "ext-libxml": "*",
    "ext-simplexml": "*",
    "ext-zlib": "*"
  },
  "require-dev": {
    "ext-xml": "*",
    "alexandresalome/doctrine-extra-bundle": "^0.3.0",
    "dama/doctrine-test-bundle": "^5.0",
    "doctrine/doctrine-fixtures-bundle": "^3.0",
    "easycorp/easy-log-handler": "^1.0.2",
    "guzzlehttp/guzzle": "^6.3",
    "malukenho/docheader": "^0.1.7",
    "phan/phan": "^0.12.15",
    "phpmetrics/phpmetrics": "^2.3",
    "phpstan/phpstan": "^0.9.2",
    "phpstan/phpstan-doctrine": "^0.9.1",
    "phpstan/phpstan-phpunit": "^0.9.4",
    "phpunit/phpunit": "^7.1",
    "roave/security-advisories": "dev-master",
    "symfony/css-selector": "^4.0",
    "symfony/dotenv": "^4.0",
    "symfony/http-kernel": "~4.0",
    "symfony/monolog-bundle": "^3.1",
    "symfony/var-dumper": "^4.0"
  },

 Problem 1
    - behat/mink v1.7.1 requires symfony/css-selector ~2.1|~3.0 -> satisfiable by symfony/css-selector[2.1.x-dev, 2.2.x-dev, 2.3.x-dev, 2.4.x-dev, 2.5.x-dev, 2.6.x-dev, 2.7.x-dev, 2.8.x-dev, 3.0.x-dev, 3.1.x-dev, 3.2.x-dev, 3.3.x-dev, 3.4.x-dev, v2.1.0, v2.1.1, v2.1.10, v2.1.11, v2.1.12, v2.1.13, v2.1.2, v2.1.3, v2.1.4, v2.1.5, v2.1.6, v2.1.7, v2.1.8, v2.1.9, v2.2.0, v2.2.1, v2.2.10, v2.2.11, v2.2.2, v2.2.3, v2.2.4, v2.2.5, v2.2.6, v2.2.7, v2.2.8, v2.2.9, v2.3.0, v2.3.1, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.28, v2.3.29, v2.3.3, v2.3.30, v2.3.31, v2.3.32, v2.3.33, v2.3.34, v2.3.35, v2.3.36, v2.3.37, v2.3.38, v2.3.39, v2.3.4, v2.3.40, v2.3.41, v2.3.42, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9, v2.4.0, v2.4.0-BETA1, v2.4.0-BETA2, v2.4.0-RC1, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-BETA1, v2.5.0-BETA2, v2.5.0-RC1, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-BETA1, v2.6.0-BETA2, v2.6.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14, v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.21, v2.7.22, v2.7.23, v2.7.24, v2.7.25, v2.7.26, v2.7.27, v2.7.28, v2.7.29, v2.7.3, v2.7.30, v2.7.31, v2.7.32, v2.7.33, v2.7.34, v2.7.35, v2.7.36, v2.7.37, v2.7.38, v2.7.39, v2.7.4, v2.7.40, v2.7.41, v2.7.42, v2.7.43, v2.7.44, v2.7.45, v2.7.46, v2.7.47, v2.7.48, v2.7.49, v2.7.5, v2.7.50, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.0-BETA1, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v2.8.49, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9, v3.0.0, v3.0.0-BETA1, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5, v3.0.6, v3.0.7, v3.0.8, v3.0.9, v3.1.0, v3.1.0-BETA1, v3.1.0-RC1, v3.1.1, v3.1.10, v3.1.2, v3.1.3, v3.1.4, v3.1.5, v3.1.6, v3.1.7, v3.1.8, v3.1.9, v3.2.0, v3.2.0-BETA1, v3.2.0-RC1, v3.2.0-RC2, v3.2.1, v3.2.10, v3.2.11, v3.2.12, v3.2.13, v3.2.14, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v3.2.7, v3.2.8, v3.2.9, v3.3.0, v3.3.0-BETA1, v3.3.0-RC1, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.16, v3.3.17, v3.3.18, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.0-BETA1, v3.4.0-BETA2, v3.4.0-BETA3, v3.4.0-BETA4, v3.4.0-RC1, v3.4.0-RC2, v3.4.1, v3.4.10, v3.4.11, v3.4.12, v3.4.13, v3.4.14, v3.4.15, v3.4.16, v3.4.17, v3.4.18, v3.4.19, v3.4.2, v3.4.20, v3.4.21, v3.4.22, v3.4.3, v3.4.4, v3.4.5, v3.4.6, v3.4.7, v3.4.8, v3.4.9] but these conflict with your requirements or minimum-stability.
    - behat/mink v1.7.0 requires symfony/css-selector ~2.1 -> satisfiable by symfony/css-selector[2.1.x-dev, 2.2.x-dev, 2.3.x-dev, 2.4.x-dev, 2.5.x-dev, 2.6.x-dev, 2.7.x-dev, 2.8.x-dev, v2.1.0, v2.1.1, v2.1.10, v2.1.11, v2.1.12, v2.1.13, v2.1.2, v2.1.3, v2.1.4, v2.1.5, v2.1.6, v2.1.7, v2.1.8, v2.1.9, v2.2.0, v2.2.1, v2.2.10, v2.2.11, v2.2.2, v2.2.3, v2.2.4, v2.2.5, v2.2.6, v2.2.7, v2.2.8, v2.2.9, v2.3.0, v2.3.1, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.28, v2.3.29, v2.3.3, v2.3.30, v2.3.31, v2.3.32, v2.3.33, v2.3.34, v2.3.35, v2.3.36, v2.3.37, v2.3.38, v2.3.39, v2.3.4, v2.3.40, v2.3.41, v2.3.42, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9, v2.4.0, v2.4.0-BETA1, v2.4.0-BETA2, v2.4.0-RC1, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-BETA1, v2.5.0-BETA2, v2.5.0-RC1, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-BETA1, v2.6.0-BETA2, v2.6.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14, v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.21, v2.7.22, v2.7.23, v2.7.24, v2.7.25, v2.7.26, v2.7.27, v2.7.28, v2.7.29, v2.7.3, v2.7.30, v2.7.31, v2.7.32, v2.7.33, v2.7.34, v2.7.35, v2.7.36, v2.7.37, v2.7.38, v2.7.39, v2.7.4, v2.7.40, v2.7.41, v2.7.42, v2.7.43, v2.7.44, v2.7.45, v2.7.46, v2.7.47, v2.7.48, v2.7.49, v2.7.5, v2.7.50, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.0-BETA1, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v2.8.49, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9] but these conflict with your requirements or minimum-stability.
    - Installation request for behat/mink ^1.7 -> satisfiable by behat/mink[v1.7.0, v1.7.1].