Composer complains about missing mcrypt extension with PHP 7.2

[hanspagel]

• Laravel Version: 5.7.0
• PHP Version: PHP 7.2
• Database Driver & Version: Postgres 10.1

Description:

When I try to upgrade from Laravel 5.6 to 5.7 Composer is complaining about the missing PHP Extension mcrypt.

  Problem 1
    - laravel/framework 5.0.x-dev requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system.
    - Conclusion: don't install laravel/framework v5.7.0

Mcrypt is deprecated with PHP 7.2, so I can't add it.

Steps To Reproduce:

Try to install Laravel 5.7 with PHP 7.2.

[staudenmeir]

Please post your composer.json file.

[hanspagel]

Sure!

{
    "name": "scrumpy/scrumpy",
    "description": "Agile Planning, Made Simple.",
    "type": "project",
    "repositories": [
        {
            "type": "path",
            "url": "packages/ipdata"
        },
        {
            "type": "path",
            "url": "./nova"
        }
    ],
    "require": {
        "php": "^7.1.3",
        "babenkoivan/scout-elasticsearch-driver": "^3.5",
        "barryvdh/laravel-cors": "^0.11.0",
        "chartmogul/chartmogul-php": "^1.1",
        "doctrine/dbal": "^2.6",
        "erusev/parsedown": "^1.6",
        "fideloper/proxy": "^4.0",
        "folklore/graphql": "^1.1",
        "guzzlehttp/guzzle": "^6.3",
        "heyscrumpy/ipdata": "^0.1.0",
        "intervention/image": "^2.4",
        "kasp3r/link-preview": "^2.0",
        "kreitje/nova-horizon-stats": "^0.3.0",
        "laravel/cashier": "^7.0",
        "laravel/dusk": "^4.0",
        "laravel/framework": "5.7.*",
        "laravel/horizon": "^1.0",
        "laravel/nova": "*",
        "laravel/passport": "^7.0",
        "laravel/scout": "^4.0",
        "laravel/tinker": "^1.0",
        "league/flysystem-aws-s3-v3": "^1.0",
        "maatwebsite/excel": "^3.0",
        "mpociot/vat-calculator": "^2.2",
        "petercoles/multilingual-country-list": "^1.2",
        "predis/predis": "^1.1",
        "roave/security-advisories": "dev-master",
        "sentry/sentry-laravel": "^0.10.0",
        "spatie/laravel-backup": "^5.0",
        "spatie/laravel-newsletter": "^4.2",
        "spatie/nova-backup-tool": "^0.0.1",
        "themsaid/nova-cashier-manager": "^0.2.0",
        "tightenco/quicksand": "dev-master"
    },
    "require-dev": {
        "filp/whoops": "~2.0",
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "nunomaduro/collision": "^2.0",
        "phpunit/phpunit": "^7.0",
        "symfony/css-selector": "4.0.*",
        "symfony/dom-crawler": "4.0.*",
        "wnx/laravel-stats": "^1.3"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        },
        "files": [
            "app/Support/helpers.php"
        ]
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
                "laravel/dusk"
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true
}

[themsaid]

Looks to me that one of the packages is requiring an old version of laravel.

[staudenmeir]

The issue is caused by tightenco/quicksand which doesn't support Laravel 5.7.