安裝friendsofsymfony / user-bundle時出錯

Question

在安裝Symfony用戶捆綁包的朋友時，遇到了此錯誤。 有人可以幫我解決這個問題嗎？

Ahmeds-MBP:placementlink2 ahmed$ composer require friendsofsymfony/user-bundle 
Using version ^2.1 for friendsofsymfony/user-bundle 
./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 
- Conclusion: don't install friendsofsymfony/user-bundle v2.1.2 
- Conclusion: don't install friendsofsymfony/user-bundle v2.1.1 
- Conclusion: don't install twig/twig v2.5.0 
- Conclusion: remove twig/twig v1.23.1 
- Conclusion: don't install twig/twig v2.4.8 
- Installation request for friendsofsymfony/user-bundle ^2.1 -> satisfiable by friendsofsymfony/user-bundle[v2.1.0, v2.1.1, v2.1.2]. 
- Conclusion: don't install twig/twig v1.23.1 
- friendsofsymfony/user-bundle v2.1.0 requires twig/twig ^1.28 || ^2.0 -> satisfiable by twig/twig[v1.28.0, v1.28.1, v1.28.2, v1.29.0, v1.30.0, v1.31.0, v1.32.0, v1.33.0, v1.33.1, v1.33.2, v1.34.0, v1.34.1, v1.34.2, v1.34.3, v1.34.4, v1.35.0, v1.35.1, v1.35.2, v1.35.3, v1.35.4, v2.0.0, v2.1.0, v2.2.0, v2.3.0, v2.3.1, v2.3.2, v2.4.0, v2.4.1, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.5.0]. 
- Can only install one of: twig/twig[v1.28.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.28.1, v1.23.1]. 
- Can only install one of: twig/twig[v1.28.2, v1.23.1]. 
- Can only install one of: twig/twig[v1.29.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.30.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.31.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.32.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.33.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.33.1, v1.23.1]. 
- Can only install one of: twig/twig[v1.33.2, v1.23.1]. 
- Can only install one of: twig/twig[v1.34.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.34.1, v1.23.1]. 
- Can only install one of: twig/twig[v1.34.2, v1.23.1]. 
- Can only install one of: twig/twig[v1.34.3, v1.23.1]. 
- Can only install one of: twig/twig[v1.34.4, v1.23.1]. 
- Can only install one of: twig/twig[v1.35.0, v1.23.1]. 
- Can only install one of: twig/twig[v1.35.1, v1.23.1]. 
- Can only install one of: twig/twig[v1.35.2, v1.23.1]. 
- Can only install one of: twig/twig[v1.35.3, v1.23.1]. 
- Can only install one of: twig/twig[v1.35.4, v1.23.1]. 
- Can only install one of: twig/twig[v2.0.0, v1.23.1]. 
- Can only install one of: twig/twig[v2.1.0, v1.23.1]. 
- Can only install one of: twig/twig[v2.2.0, v1.23.1]. 
- Can only install one of: twig/twig[v2.3.0, v1.23.1]. 
- Can only install one of: twig/twig[v2.3.1, v1.23.1]. 
- Can only install one of: twig/twig[v2.3.2, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.0, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.1, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.2, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.3, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.4, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.5, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.6, v1.23.1]. 
- Can only install one of: twig/twig[v2.4.7, v1.23.1]. 
- Installation request for twig/twig (locked at v1.23.1) -> satisfiable by twig/twig[v1.23.1].

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

這是我的composer.json文件：

"require":{  
  "php":">=5.5.9",
  "symfony/symfony":"3.0.*",
  "doctrine/orm":"^2.5",
  "doctrine/doctrine-bundle":"^1.6",
  "doctrine/doctrine-cache-bundle":"^1.2",
  "symfony/swiftmailer-bundle":"^2.3",
  "symfony/monolog-bundle":"^2.8",
  "sensio/distribution-bundle":"^5.0",
  "sensio/framework-extra-bundle":"^3.0.2",
  "incenteev/composer-parameter-handler":"^2.0"
},
"require-dev":{  
  "sensio/generator-bundle":"^3.0",
  "symfony/phpunit-bridge":"^2.7"
},

Answer 1

我對您上面提到的問題進行了一些谷歌搜索，似乎有一個錯誤修正。 不幸的是，據我所知，此修復程序未移植到3.0版本，因為在發生錯誤時，不再維護3.0：

Fabien Potencier（fabpot）於2016年10月23日發表評論

哦，我知道您正在使用Symfony 3.0 。 不幸的是，由於不再維護3.0 ，因此無法正常工作。 您需要升級到3.1或使用Twig 1.x 。

請按照Fabien的建議進行操作，您應該擺脫一個問題。

希望這可以幫助...