php Composer 抛出 [ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository 不存在

Question

提问by Marko Mikuli?

I installed the latest version (1.0.0. stable) of composer and in my Yii2 project I typed this:

我安装了最新版本 (1.0.0. stable) 的 composer 并在我的 Yii2 项目中输入了以下内容：

php composer.phar update

It gives me this error:

它给了我这个错误：

[ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository does not exist

[ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository 不存在

[ErrorException] Declaration of Fxp\Composer\AssetPlugin\Repository\AbstractAssetsRepository::whatProvides() should be compatible with Composer\Repository\ComposerRepository::whatProvides(Composer\DependencyResolver\Pool $pool, $name, $bypassFilters = false)

[ErrorException] Fxp\Composer\AssetPlugin\Repository\AbstractAssetsRepository::whatProvides() 的声明应该与 Composer\Repository\ComposerRepository::whatProvides(Composer\DependencyResolver\Pool $pool, $name, $bypassFilters = false) 兼容

Can someone help me how to fix this?

有人可以帮我解决这个问题吗？

Here's my composer.json

这是我的 composer.json

{
    "name": "yiisoft/yii2-app-advanced",
    "description": "Yii 2 Advanced Project Template",
    "keywords": ["yii2", "framework", "advanced", "project template"],
    "homepage": "http://www.yiiframework.com/",
    "type": "project",
    "license": "BSD-3-Clause",
    "support": {
        "issues": "https://github.com/yiisoft/yii2/issues?state=open",
        "forum": "http://www.yiiframework.com/forum/",
        "wiki": "http://www.yiiframework.com/wiki/",
        "irc": "irc://irc.freenode.net/yii",
        "source": "https://github.com/yiisoft/yii2"
    },
    "minimum-stability": "stable",
    "require": {
        "php": ">=5.4.0",
        "yiisoft/yii2": ">=2.0.6",
        "yiisoft/yii2-bootstrap": "*",
        "yiisoft/yii2-swiftmailer": "*",
        "kartik-v/yii2-widget-fileinput": "@dev",
        "golonka/bbcodeparser": "^2.2"
    },
    "require-dev": {
        "yiisoft/yii2-codeception": "*",
        "yiisoft/yii2-debug": "*",
        "yiisoft/yii2-gii": "*",
        "yiisoft/yii2-faker": "*"
    },
    "config": {
        "process-timeout": 1800
    },
    "extra": {
        "asset-installer-paths": {
            "npm-asset-library": "vendor/npm",
            "bower-asset-library": "vendor/bower"
        }
    }
}

Answer 1

回答by Federkun

About nine days ago (around end of March, 2016), Composer\Repository\ComposerRepository::whatProvidesapi changed. (#2668) So, if you have installed fxp/composer-asset-pluginglobally, you should update it. You can do that with:

大约 9 天前（大约 2016 年 3 月底），Composer\Repository\ComposerRepository::whatProvidesapi 发生了变化。( #2668) 因此，如果您已fxp/composer-asset-plugin全局安装，则应更新它。你可以这样做：

php composer.phar global update fxp/composer-asset-plugin --no-plugins

Answer 2

回答by Javid Ahadov

Try this one if update doesn't work.

如果更新不起作用，请尝试此方法。

composer global require fxp/composer-asset-plugin --no-plugins

Answer 3

回答by Alexander O'Mara

I ended up resolving the issue by removing the fxpdirectory from the .composerdirectory. On my setup, this does the trick:

我最终通过从fxp目录中删除目录来解决这个问题.composer。在我的设置中，这可以解决问题：

rm -rf ~/.composer/vendor/fxp

Now when something needs it, it can just re-download the updated plugin.

现在，当需要它时，它可以重新下载更新的插件。

Answer 4

回答by Mohammad Eghlima

Try to edit your global composer.jsonby running:

尝试composer.json通过运行来编辑您的全局：

vi ~/.composer/composer.jsonthen make sure you have this line on it:

vi ~/.composer/composer.json然后确保你有这条线：

{
    "require": {
        "fxp/composer-asset-plugin": "1.1.*"
    }
}

the above answers did not work for me because the version of my fxp/composer-asset-pluginwas like 1.1-beta04, when I changed it to "1.1.8"and run updating command:

上述答案对我不起作用，因为我的版本fxp/composer-asset-plugin就像1.1-beta04，当我将其更改为"1.1.8"并运行更新命令时：

php /usr/bin/composer global update fxp/composer-asset-plugin --no-plugins

It fixed the problem. but without editing my global composer.json, it was giving me this error:

它解决了这个问题。但没有编辑我的 global composer.json，它给了我这个错误：

Your requirements could not be resolved to an installable set of packages.
Problem 1 - Installation request for fxp/composer-asset-plugin 1.0.0-beta3 -> satisfiable by fxp/composer-asset-plugin[v1.0.0-beta3]. - fxp/composer-asset-plugin v1.0.0-beta3 requires composer-plugin-api 1.0.0 -> no matching package found.
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-stabilityfor more details.
Read https://getcomposer.org/doc/articles/troubleshooting.mdfor further common problems.

无法将您的要求解析为一组可安装的软件包。
问题 1 - fxp/composer-asset-plugin 1.0.0-beta3 的安装请求 -> fxp/composer-asset-plugin[v1.0.0-beta3] 可满足。- fxp/composer-asset-plugin v1.0.0-beta3 需要 composer-plugin-api 1.0.0 -> 找不到匹配的包。
可能的原因： -在包名称的错字-根据您的最低稳定性设定看到包不能在一个稳定的，足以版本https://getcomposer.org/doc/04-schema.md#minimum-stability为更多细节。
阅读https://getcomposer.org/doc/articles/troubleshooting.md了解更多常见问题。

Answer 5

回答by Isayevskiy_Sergey

In my case project on Yii2

在我的 Yii2 项目中

$ composer

  [ReflectionException]
  Class Fxp\Composer\AssetPlugin\Repository\NpmRepository does not exist


  [ErrorException]
  Declaration of Fxp\Composer\AssetPlugin\Repository\AbstractAssetsRepository
  ::whatProvides() should be compatible with Composer\Repository\ComposerRepo
  sitory::whatProvides(Composer\DependencyResolver\Pool $pool, $name, $bypass
  Filters = false)

Yii2, in folder vendor/fxpyou need to replace the folder composer-asset-pluginor delete it.

Yii2，在文件夹中vendor/fxp您需要替换文件夹composer-asset-plugin或删除它。

Answer 6

回答by Ivo Pereira

If none of the other solutions have worked for you, please try AssetPackagistas an alternative.

如果其他解决方案都不适合您，请尝试使用AssetPackagist作为替代方案。

Add the packagesbower-asset/bootstrapand npm-asset/jqueryto composer.json like the following:
```
"require": {
    "bower-asset/bootstrap": "^3.3",
    "npm-asset/jquery": "^2.2"
}
```
Add a repositoriesblock (if you still don't have one, if you do, just append to it) with the following content:
```
"repositories": [
    {
        "type": "composer",
        "url": "https://asset-packagist.org"
    }
]
```
Run composer install(or composer update)
Considering that asset-packagistinstalls assets in a different directory, add the following lines to your application config (usually called as web.php):
```
$config = [
    'aliases' => [
        '@bower' => '@vendor/bower-asset',
        '@npm'   => '@vendor/npm-asset',
    ],
];
```

将包bower-asset/bootstrap和npm-asset/jquery 添加到 composer.json 中，如下所示：
```
"require": {
    "bower-asset/bootstrap": "^3.3",
    "npm-asset/jquery": "^2.2"
}
```

添加一个repositories块（如果你还没有，如果你有，只需附加到它），内容如下：

"repositories": [
    {
        "type": "composer",
        "url": "https://asset-packagist.org"
    }
]

运行composer install（或composer update）
考虑到asset-packagist将资产安装在不同的目录中，将以下行添加到您的应用程序配置（通常称为 web.php）：
```
$config = [
    'aliases' => [
        '@bower' => '@vendor/bower-asset',
        '@npm'   => '@vendor/npm-asset',
    ],
];
```

These instructions may change over time. They have been copied from the repo website so they could last in time just in case something happens to the website. I am not the author of the repo but I really appreciate the effort made into it. Please check https://asset-packagist.org/site/aboutto know more about the project.

这些说明可能会随着时间而改变。它们是从 repo 网站复制的，因此它们可以及时保存，以防万一网站发生问题。我不是 repo 的作者，但我真的很感激为此付出的努力。请查看https://asset-packagist.org/site/about以了解有关该项目的更多信息。

If you are struggling with composer, here you have some useful commands:

如果您在使用 Composer 时遇到困难，这里有一些有用的命令：

composer clear-cache- Clear composer related caches

composer clear-cache- 清除作曲家相关的缓存

composer install -vvv- Add the parameter "vvv" to show installation process related output (useful to debug)

composer install -vvv- 添加参数“vvv”以显示安装过程相关输出（用于调试）

composer global show- Useful to check if you already have fxp/composer-asset-plugininstalled. In my case, it already was, however it was not being detected as a dependency, and the solution I described earlier worked flawless to me - hope it does work for you too!

composer global show- 检查您是否已经安装了fxp/composer-asset-plugin很有用。在我的情况下，它已经是，但是它没有被检测为依赖项，我之前描述的解决方案对我来说完美无缺 - 希望它也对你有用！

Answer 7

回答by Gabb3

You can make a permanent fix by requiring it at global level and then it's solved for every other project. But then make sure you give the tip to all your team members.

您可以通过在全局级别要求它来进行永久修复，然后为每个其他项目解决它。但是，请确保向所有团队成员提供提示。

Best is to add this at project scope and it solves to everybody that way.

最好是在项目范围内添加这个，它会以这种方式解决每个人。

So:

所以：

composer require fxp/composer-asset-plugin

php Composer 抛出 [ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository 不存在

提问by Marko Mikuli?

回答by Federkun

回答by Javid Ahadov

回答by Alexander O'Mara

回答by Mohammad Eghlima

回答by Isayevskiy_Sergey

回答by Ivo Pereira

回答by Gabb3

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php Composer 抛出 [ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository 不存在

提问by Marko Mikuli?

回答by Federkun

回答by Javid Ahadov

回答by Alexander O'Mara

回答by Mohammad Eghlima

回答by Isayevskiy_Sergey

回答by Ivo Pereira

回答by Gabb3

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