我尝试使用命令在Ubuntu上使用composer创建一个Symfony2项目：
PHP composer.phar create-project symfony/framework-standard-edition projectpath
我得到了这个错误
Installing symfony/framework-standard-edition (dev-master 506ffaab8d8474db2512fca879ca4b9877616a1e)
- Installing symfony/framework-standard-edition (dev-master master)
cloning master
Created project in projectpath/
Loading composer repositories with package information
Installing dependencies from lock file
Your lock file is out of sync with your composer.json,run "composer.phar update" to update dependencies
Your requirements Could not be resolved to an installable set of packages.
Problem 1
- Installation request for symfony/symfony == 2.1.9999999.9999999-dev -> satisfiable by symfony/symfony 2.1.x-dev.
- Can only install one of: symfony/symfony dev-master,symfony/symfony 2.1.x-dev.
- Installation request for symfony/symfony == 9999999-dev -> satisfiable by symfony/symfony dev-master.
composer.phar update也会返回错误.
有任何想法吗？
尝试指定您想要的确切版本,现在已在symfony-standard repo中修复,这应该有效：
PHP composer.phar create-project symfony/framework-standard-edition projectpath 2.1.x-dev