Composer 无法安装依赖项

Question

我有一个 FuelPhp 项目，我正在尝试通过 Composer 安装依赖项。当我运行 composer 在命令行上安装时，出现以下错误；

 The requested PHP extension ext-mbstring ^0.0.0 has the wrong version (7.0.18) installed. Install or enable PHP's mbstring extension.

我安装并启用了 mbstring 扩展。为什么作曲家抱怨 ext-mbstring 扩展？

作曲家Version:1.6.3 Php Version:7.0.18 OS:Windows10

本文来自composer.json

   "require": {
    "php": ">=5.3.3",
    "composer/installers": "~1.0",
    "fuel/docs": "dev-1.7/master",
    "fuel/core": "dev-1.7/master",
    "fuel/auth": "dev-1.7/master",
    "fuel/email": "dev-1.7/master",
    "fuel/oil": "dev-1.7/master",
    "fuel/orm": "dev-1.7/master",
    "fuel/parser": "dev-1.7/master",
    "trait-orm-format": "dev-master",
    "fuelphp/upload": "2.0.2",
    "monolog/monolog": "1.5.*",
    "michelf/php-markdown": "1.4.0",
    "ext-mbstring": "^0.0.0"
}

Answer 1

^0.0.0 版本限制意味着 Composer 不会安装超过 0.0.* 版本的任何东西。

使用 "ext-mbstring": "*" 作为版本约束并且安装应该正确通过。

Composer 无法安装依赖项

Composer can not install dependencies

mbstring

composer-php