php - 您的要求无法解析为一组可安装的软件包。 - 拉维尔 5.7

Question

我尝试安装一个包

composer require vinkla/instagram php-http/message php-http/guzzle6-adapter 

我不断得到

Do not run Composer as root/super user! See https://getcomposer.org/root for details                          
Using version ^9.1 for vinkla/instagram                                                                       
Using version ^1.7 for php-http/message                                                                       
Using version ^2.0 for php-http/guzzle6-adapter                                                               
./composer.json has been updated                                                                              
Loading composer repositories with package information                                                        
Updating dependencies (including require-dev)                                                                 
Your requirements could not be resolved to an installable set of packages.                                    

  Problem 1                                                                                                   
    - nexmo/client 1.6.1 requires php-http/guzzle6-adapter ^1.0 -> satisfiable by php-http/guzzle6-adapter[v1.0.0, v1.1.0, v1.1.1] but these conflict with your requirements or minimum-stability.                          
    - nexmo/client 1.6.1 requires php-http/guzzle6-adapter ^1.0 -> satisfiable by php-http/guzzle6-adapter[v1.0.0, v1.1.0, v1.1.1] but these conflict with your requirements or minimum-stability.                          
    - nexmo/client 1.6.1 requires php-http/guzzle6-adapter ^1.0 -> satisfiable by php-http/guzzle6-adapter[v1.0.0, v1.1.0, v1.1.1] but these conflict with your requirements or minimum-stability.                          
    - Installation request for nexmo/client (locked at 1.6.1) -> satisfiable by nexmo/client[1.6.1].          


Installation failed, reverting ./composer.json to its original content.                                       

我在

php --版本

PHP 7.2.14-1+ubuntu14.04.1+deb.sury.org+1 (cli) (built: Jan 13 2019 10:33:56) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.2.14-1+ubuntu14.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

Composer .json

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "laravel/framework": "5.7.*",
        "intervention/image": "^2.3",
        "laravelcollective/remote": "5.7.*",
        "doctrine/dbal": "^2.3",
        "league/flysystem-sftp": "^1.0",
        "laravelcollective/html": "^5.4.0",
        "phpseclib/phpseclib": "~2.0",
        "htmlmin/htmlmin": "^5.0",
        "league/flysystem-aws-s3-v3": "~1.0",
        "vinkla/instagram": "^8.0",
        "php-http/message": "^1.6",
        "php-http/guzzle6-adapter": "^1.1"
    },
    "require-dev": {
        "phpunit/phpunit": "~7.0",
        "phpspec/phpspec": "~5.0",
        "symfony/dom-crawler": "~3.1",
        "symfony/css-selector": "~3.1",
        "filp/whoops" : "~2.0"
    },
    "autoload": {
        "classmap": [ "database" ],

        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "classmap": [
        ]
    },
    "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"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "config": {
        "preferred-install": "dist"
    }
}

我应该检查什么来解决这个问题？

Answer 1

有两种常见的方法可以通过 Composer 将新包引入您的项目:更新 composer.json，或使用命令 composer require。看起来你在这里同时做这两件事，而 Composer 变得很困惑。

当你使用composer require时，Composer 通常会使用最新版本。您可以在命令后的屏幕截图中看到这一行:

Using version ^2.0 for php-http/guzzle6-adapter

^2.0 与 Instagram 包冲突，后者需要 ^1.1。您可以通过以下两种方式之一解决此问题:

1) 手动更新 composer.json

你的 composer.json 指定版本 ^1.1 看起来不错，但你不想在中使用 composer require 命令为了安装它。相反，请使用 composer update。

您可以在不带任何参数的情况下运行 composer update，它将安装任何新包并更新任何具有可用新版本的现有包。这可能不是您想要的，因此您可以指定要更新的包。在这种情况下，它是您正在安装的:

composer update vinkla/instagram php-http/message php-http/guzzle6-adapter

2)在require命令中明确版本号

您可以使用以下语法在 composer require 中指定版本要求:vendor/package:[version] 因此，您的命令变为:

composer require vinkla/instagram php-http/message php-http/guzzle6-adapter:^1.1