编写器在安装adldap2 2/adldap2 2-laravel时无法找到依赖项

Question

我试图用adldap 2/adldap 2-laravel和adldap 2/adldap 2替换strebl/l5lap-auth和strebl/adldap包，但是在试图使用Composer安装时会出现以下错误：

Your requirements could not be resolved to an installable set of packages.

完整的错误消息如下：

sudo php composer.phar require adldap2/adldap2
Using version ^6.0 for adldap2/adldap2
./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
- illuminate/support v5.2.25 requires illuminate/contracts 5.3.* -> no matching package found.
- Conclusion: remove laravel/framework v5.1.35
- Conclusion: don't install laravel/framework v5.1.35
- adldap2/adldap2 v6.0.0 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.1 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.2 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.3 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.4 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.5 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.6 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.7 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.8 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- adldap2/adldap2 v6.0.9 requires illuminate/support ~5.2 -> satisfiable by illuminate/support[v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.6, v5.2.7].
- don't install illuminate/support v5.2.0|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.19|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.21|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.24|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.26|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.27|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.28|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.31|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.6|don't install laravel/framework v5.1.35
- don't install illuminate/support v5.2.7|don't install laravel/framework v5.1.35
- Installation request for laravel/framework == 5.1.35.0 -> satisfiable by laravel/framework[v5.1.35].
- Installation request for adldap2/adldap2 ^6.0 -> satisfiable by adldap2/adldap2[v6.0.0, v6.0.1, v6.0.2, v6.0.3, v6.0.4, v6.0.5, v6.0.6, v6.0.7, v6.0.8, v6.0.9].

Potential causes:
- A typo in the package name
- The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details.

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

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

我怀疑这条线

requires illuminate/contracts 5.3.* -> no matching package found

是问题的根源。

看看最新的Laravel开发源代码，在我看来，最新版本照明/合同是5.2，而不是5.3，所以可能是一个错误的地方。

我是否可以重写此要求，或者强制安装adldap2 2/adldap2 2-laravel和adldap2 2/adldap2 2？

我的composer.json文件的当前内容如下：

{
    "name": "laravel/laravel",
    "minimum-stability": "stable",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.1.*",
        "venturecraft/revisionable": "^1.27",
        "league/oauth2-server": "4.1.*",
        "illuminate/html": "5.0.*",
        "doctrine/dbal": "^2.5",
        "barryvdh/laravel-debugbar": "^2.2",
        "barryvdh/laravel-ide-helper": "*",
        "strebl/adldap": "4.0.*",
        "strebl/l5-ldap-auth": "2.1.*"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~4.0",
        "phpspec/phpspec": "~2.1"
    },
    "autoload": {
        "classmap": [
            "database",
            "app/Custom",
            "app/Traits"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "classmap": [
            "tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-root-package-install": [
            "php -r \"copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ],
        "post-install-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postInstall",
            "php artisan clear-compiled",
            "php artisan ide-helper:generate",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postUpdate",
            "php artisan optimize"
        ]
    },
    "config": {
        "preferred-install": "dist"
    }
}

Answer 1

版本5.2.25 of illuminate/support与illuminate/contracts 不存在 (5.3.*)有依赖关系。这一点在该包的v5.2.27中得到了纠正。

这里还有另一个冲突，laravel/framework需要v5.1.* of illuminate/support，而adldap2/adldap2需要~5.2。

所以，试着改变

"laravel/framework": "5.1.*",

至

"laravel/framework": "5.2.*",