您的要求無法解決為一組可安裝的軟件包

Question

我在運行composer install時遇到此錯誤，這里是composer.json

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "laravel/framework": "4.3.*",
    "illuminate/html": "4.3.*@dev",
    "laracasts/flash": "@dev"
},
"require-dev": {
    "phpunit/phpunit": "~4.0"
},
"autoload": {
    "classmap": [
        "database",
        "tests/TestCase.php"
    ],
    "psr-4": {
        "App\\": "app/"
    },
    "files":[
        "support/helpers.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 artisan key:generate"
    ]
},
"config": {
    "preferred-install": "dist"
},
"minimum-stability": "dev"
}

全部錯誤是

Problem 1
- The requested package laravel/framework 4.3.* exists as laravel/framework[4.0.x-dev, 4.1.x-dev, 4.2.x-dev, 5.0.30, 5.0.x-dev, 5.1.x-dev, 5.2.41, 5.2.x-dev, 5.3.x-dev, 5.4.x-dev, dev-master, 5.5.x-dev, v4.0.0, v4.0.0-BETA2, v4.0.0-BETA3, v4.0.0-BETA4, v4.0.1, v4.0.10, v4.0.11, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.0.6, v4.0.7, v4.0.8, v4.0.9, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.31, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0, v4.2.0-BETA1, v4.2.1, v4.2.10, v4.2.11, v4.2.12, v4.2.13, v4.2.14, v4.2.15, v4.2.16, v4.2.17, v4.2.18, v4.2.19, v4.2.2, v4.2.20, v4.2.21, v4.2.22, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9, v5.0.0, v5.0.1, v5.0.10, v5.0.11, v5.0.12, v5.0.13, v5.0.14, v5.0.15, v5.0.16, v5.0.17, v5.0.18, v5.0.19, v5.0.2, v5.0.20, v5.0.21, v5.0.22, v5.0.23, v5.0.24, v5.0.25, v5.0.26, v5.0.27, v5.0.28, v5.0.29, v5.0.3, v5.0.31, v5.0.32, v5.0.33, v5.0.34, v5.0.35, v5.0.4, v5.0.5, v5.0.6, v5.0.7, v5.0.8, v5.0.9, v5.1.0, v5.1.1, v5.1.10, v5.1.11, v5.1.12, v5.1.13, v5.1.14, v5.1.15, v5.1.16, v5.1.17, v5.1.18, v5.1.19, v5.1.2, v5.1.20, v5.1.21, v5.1.22, v5.1.23, v5.1.24, v5.1.25, v5.1.26, v5.1.27, v5.1.28, v5.1.29, v5.1.3, v5.1.30, v5.1.31, v5.1.32, v5.1.33, v5.1.34, v5.1.35, v5.1.36, v5.1.37, v5.1.38, v5.1.39, v5.1.4, v5.1.40, v5.1.41, v5.1.42, v5.1.43, v5.1.44, v5.1.45, v5.1.5, v5.1.6, v5.1.7, v5.1.8, v5.1.9, v5.2.0, v5.2.0-beta1, v5.2.1, v5.2.10, v5.2.11, v5.2.12, v5.2.13, v5.2.14, v5.2.15, v5.2.16, v5.2.17, v5.2.18, v5.2.19, v5.2.2, v5.2.20, v5.2.21, v5.2.22, v5.2.23, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.29, v5.2.3, v5.2.30, v5.2.31, v5.2.32, v5.2.33, v5.2.34, v5.2.35, v5.2.36, v5.2.37, v5.2.38, v5.2.39, v5.2.4, v5.2.40, v5.2.42, v5.2.43, v5.2.44, v5.2.45, v5.2.5, v5.2.6, v5.2.7, v5.2.8, v5.2.9, v5.3.0, v5.3.0-RC1, v5.3.1, v5.3.10, v5.3.11, v5.3.12, v5.3.13, v5.3.14, v5.3.15, v5.3.16, v5.3.17, v5.3.18, v5.3.19, v5.3.2, v5.3.20, v5.3.21, v5.3.22, v5.3.23, v5.3.24, v5.3.25, v5.3.26, v5.3.27, v5.3.28, v5.3.29, v5.3.3, v5.3.30, v5.3.4, v5.3.5, v5.3.6, v5.3.7, v5.3.8, v5.3.9, v5.4.0, v5.4.1, v5.4.2, v5.4.3, v5.4.4, v5.4.5, v5.4.6, v5.4.7] but these are rejected by your constraint.
 Problem 2
- The requested package illuminate/html 4.3.*@dev exists as illuminate/html[4.0.x-dev, 4.1.x-dev, 4.2.x-dev, dev-master, 5.0.x-dev, v4.0.0, v4.0.0-BETA4, v4.0.1, v4.0.10, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.0.6, v4.0.7, v4.0.8, v4.0.9, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9, v5.0.0] but these are rejected by your constraint.

我需要laravel 4.3設置。 在https://laravel.com上無法使用4.3安裝程序，因此我只是獲取composer.json並將其放置在文件夾中並運行composer install。 請幫助我如何解決此問題，這對我非常有幫助。

Answer 1

沒有Laravel 4.3任何版本。 Laravel 4的最新版本是4.2 。

之后，我們有了Laravel 5 。

這是版本的證明：

如果您想獲得Laravel 5，請使用：

"laravel/framework": "5.<version>.*",

哪里：

<version>可以是5.0到5.7任何版本

或者您可以使用composer創建項目：

composer create-project --prefer-dist laravel/laravel blog "5.3.*"

或者，如果您想使用Laravel 4.2：

composer create-project laravel/laravel {directory} 4.2 --prefer-dist

或將您的composer.json更改為4.2.*