71529
### 前提・実現したいこと

現在、既存の作成されたWebアプリのsymfonyバージョンを上げる作業をしております。  
composer requireでパッケージを指定したダウンロードを行いたいのですが、  
Nothing to install or updateとなり、インストールできません。  
原因は何でしょうか。

### 発生している問題・composer requireの文章

```

    [vagrant@localhost Symfony]$ php -d memory_limit=-1 /usr/local/bin/composer require symfony/intl:2.8.52
    Initializing PEAR repository http://pear.php.net
    Warning: Accessing pear.php.net over http which is an insecure protocol.
    ./composer.json has been updated
    Loading composer repositories with package information
    Initializing PEAR repository http://pear.php.net
    Warning: Accessing pear.php.net over http which is an insecure protocol.
    Updating dependencies (including require-dev)
    Nothing to install or update
    Package phpoffice/phpexcel is abandoned, you should avoid using it. Use phpoffice/phpspreadsheet instead.
    Package sensio/distribution-bundle is abandoned, you should avoid using it. No replacement was suggested.
    Package sensio/generator-bundle is abandoned, you should avoid using it. Use symfony/maker-bundle instead.
    Package symfony/webpack-encore-pack is abandoned, you should avoid using it. Use symfony/webpack-encore-bundle instead.
    Package twig/extensions is abandoned, you should avoid using it. No replacement was suggested.
    Writing lock file
    Generating autoload files
    12 packages you are using are looking for funding.
    Use the `composer fund` command to find out more!
    > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap
    > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
    PHP Fatal error:  Class 'Symfony\Component\HttpKernel\Kernel' not found in /home/vagrant/Symfony/app/AppKernel.php on line 7
    Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the post-update-cmd event terminated with an exception
    
    Installation failed, reverting ./composer.json to its original content.
      [RuntimeException]
      An error occurred when executing the "'cache:clear --no-warmup'" command:
      PHP Fatal error:  Class 'Symfony\Component\HttpKernel\Kernel' not found in /home/vagrant/Symfony/app/AppKernel.php on line 7
    
    require [--dev] [--prefer-source] [--prefer-dist] [--fixed] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--update-with-all-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...
    
```

### 試したこと

他のパッケージは同様の操作でインストールできています。  
また、バージョンを指定しないと下記のような文章が出ます。  
`composer show symfony/intl`で確認しましたが、` [InvalidArgumentException] Package
symfony/intl not found`と出ました。

```

    [vagrant@localhost Symfony]$ php -d memory_limit=-1 /usr/local/bin/composer require symfony/intl
    Initializing PEAR repository http://pear.php.net
    Warning: Accessing pear.php.net over http which is an insecure protocol.
    Using version ^3.4 for symfony/intl
    ./composer.json has been updated
    Loading composer repositories with package information
    Initializing PEAR repository http://pear.php.net
    Warning: Accessing pear.php.net over http which is an insecure protocol.
    Updating dependencies (including require-dev)
    Your requirements could not be resolved to an installable set of packages.
    
      Problem 1
        - Conclusion: remove symfony/symfony v2.8.52
        - Conclusion: don't install symfony/symfony v2.8.52
    　　　・
    　　　・
    　　　・
        - don't install symfony/intl v3.4.0|don't install symfony/symfony v2.8.5
    　　  ・
    　　　・
    　　　・
        - Installation request for symfony/symfony 2.8.* -> satisfiable by symfony/symfony[v2.8.0, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v2.8.49, v2.8.5, v2.8.50, v2.8.51, v2.8.52, v2.8.6, v2.8.7, v2.8.8, v2.8.9].
        - Installation request for symfony/intl ^3.4 -> satisfiable by symfony/intl[v3.4.0, v3.4.1, v3.4.10, v3.4.11, v3.4.12, v3.4.13, v3.4.14, v3.4.15, v3.4.16, v3.4.17, v3.4.18, v3.4.19, v3.4.2, v3.4.20, v3.4.21, v3.4.22, v3.4.23, v3.4.24, v3.4.25, v3.4.26, v3.4.27, v3.4.28, v3.4.29, v3.4.3, v3.4.30, v3.4.31, v3.4.32, v3.4.33, v3.4.34, v3.4.35, v3.4.36, v3.4.37, v3.4.38, v3.4.39, v3.4.4, v3.4.40, v3.4.41, v3.4.42, v3.4.43, v3.4.44, v3.4.45, v3.4.5, v3.4.6, v3.4.7, v3.4.8, v3.4.9].
    
    
    Installation failed, reverting ./composer.json to its original content.
    
```

### 補足情報（FW/ツールのバージョンなど）

CentOS 6.7  
composer 1.10  
symfony 2.8.52  
PHP 5.6.40

※同様の質問を [teratail](https://teratail.com/questions/299725)
にてしております。そちらで解決しましたら、こちらでも共有いたします。
CC BY-SA 4.0
2020-10-23T01:18:07.083
71438
2020-10-27T03:16:28.937
2020-10-23T05:37:17.693
3060
42407
question
php linux symfony2 composer
composer require でインストールできない
composer
requireでエラーが出たパッケージをバージョン指定して、どんどん追加することでアップデートできました。最終的に行った命令文を記載します。phpのバージョンは5.6でした。  
php -d memory_limit=-1 /usr/local/bin/composer require --update-with-
dependencies --prefer-dist symfony/symfony "3.0. _" symfony/framework-bundle
"3.0._" doctrine/doctrine-bundle " ~1.4" jms/aop-bundle "1.2. _" jms/di-extra-
bundle "1.7._" jms/security-extra-bundle "1.6. _" liuggio/excelbundle "2.1.0"
sensio/distribution-bundle "5.0._" sensio/framework-extra-bundle "3.0. _"
sensio/generator-bundle "3.0._" symfony/monolog-bundle "3.0. _"
symfony/console "3.0._" doctrine/orm "2.5. _" symfony/intl "3.0._"
CC BY-SA 4.0
2020-10-27T03:16:28.937
71529
2020-10-27T03:16:28.937
42407
71438
answer