由于packagist更改导致的报错。例如： 可以把composer.json中修改一下 "packagist": { "type": "composer", "url": "https://packagist.phpcomposer.com"}修改成 "packagist": { "type": "composer", "url": "https://packagist.laravel-china.org"} 原文：https://blog.csdn.net/kangsf1989/article/details/82969407
我想将项目从Symfony 2.3升级到2.4.我已经知道2.4版本具有与2.3的向后兼容性,并且只需要更新de组件版本. 这是我的composer.json：{"name" : "symfony/framework-standard-edition","description" : "The \"Symfony Standard Edition\" distribution","type" : "project","license" : ["MIT"],"require" : {"symfony/symfony" : "2.3.*","doctrine/doctrine-fixtures-bundle" : "dev-master","symfony/swiftmailer-bundle" : "2.3.*...