composer.json

{
    "type": "project",
    "license": "proprietary",
    "require": {
        "php": "^7.0.8",
        "sensio/framework-extra-bundle": "^4.0",
        "symfony/console": "^3.3",
        "symfony/form": "^3.3",
        "symfony/framework-bundle": "^3.3",
        "symfony/lts": "^3",
        "symfony/translation": "^3.3",
        "symfony/twig-bundle": "^3.3",
        "symfony/validator": "^3.3",
        "symfony/yaml": "^3.3"
    },
    "require-dev": {
        "symfony/dotenv": "^3.3"
    },
    "config": {
        "preferred-install": {
            "*": "dist"
        },
        "sort-packages": true
    },
    "autoload": {
        "psr-4": {
            "App\\": "src/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "App\\Tests\\": "tests/"
        }
    },
    "conflict": {
        "symfony/symfony": "*",
        "symfony/twig-bundle": "<3.3",
        "symfony/debug": "<3.3"
    },
    "minimum-stability": "stable"
}