Install / Update Composer stops working

Question

Suddenly my composer stops working.

Whenever I run composer update, after that it does not progress:

Download composer repositories with package information
    Update dependencies (including require-dev)

I tried another Laravel project, this Composer project worked

I cleared the cache and also executed this command rm -rf ~/.composer/cache

Nothing happens. I moved composer.lockto another folder, removed from the current project and executed the commands again, but no luck

Here is my file composer.json:

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.1.*",
        "nesbot/carbon": "~1.14",
        "venturecraft/revisionable": "~1.8",
        "doctrine/dbal": "v2.4.2",
        "zizaco/entrust": "dev-laravel-5",
        "aws/aws-sdk-php-laravel": "~3.0",
        "guzzlehttp/guzzle": "~5.2",
        "league/flysystem-aws-s3-v2": "~1.0",
        "sofa/revisionable": "~1.0@dev",
        "maatwebsite/excel": "~2.0.0",
        "monolog/monolog": "^1.15",
        "jenssegers/agent": "^2.2",
        "php-mime-mail-parser/php-mime-mail-parser": "^2.1",
        "messaged/php-mime-mail-parser": "^1.0",
        "willdurand/email-reply-parser": "^2.4",
        "barryvdh/laravel-debugbar": "~2.0.2"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~4.0",
        "phpspec/phpspec": "~2.1"
    },
    "autoload": {
        "classmap": [
            "database"
        ],
        "psr-4": {
            "App\\": "app/",
            "Validations\\": "app/Validations"
        },
        "files": [
            "app/Support/helpers.php"
        ]
    },
    "autoload-dev": {
        "classmap": [
            "tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-install-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-create-project-cmd": [
            "php -r \"copy('.env.example', '.env');\"",
            "php artisan key:generate"
        ]
    },
    "config": {
        "preferred-install": "dist"
    }
}

Answer 1

, , :

"aws/aws-sdk-php-laravel": "~3.0",
"league/flysystem-aws-s3-v2": "~1.0",

, . Laravel 5.1 (composer create-project laravel/laravel --prefer-dist). composer.json

( require-dev)

, composer update . , , , Composer -verbose.

---

composer.json :

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.1.*",
        "aws/aws-sdk-php-laravel": "~3.0",
        "league/flysystem-aws-s3-v2": "~1.0"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~4.0",
        "phpspec/phpspec": "~2.1"
    },
    "autoload": {
        "classmap": [
            "database"
        ],
        "psr-4": {
            "App\\": "app/",
            "Validations\\": "app/Validations"
        }
    },
    "autoload-dev": {
        "classmap": [
            "tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-install-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "pre-update-cmd": [
            "php artisan clear-compiled"
        ],
        "post-update-cmd": [
            "php artisan optimize"
        ],
        "post-root-package-install": [
            "php -r \"copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ]
    },
    "config": {
        "preferred-install": "dist"
    }
}