The Entity shortcut name [AcmeDemoBundle:User]: Notice: Undefined variable: output in /opt/case/symfony/Symfony/vendor/symfony/symfony/src/Symfony/Component/Console/Helper/DialogHelper.php line 411
报这个错误，为啥？直接下载后执行命令的，在环境是 ubuntu+php5.3.18+nginx 求破！
Notice: Undefined variable: output
output变量未定义查看下源码
php.ini配置中 搜索 disable_function
你的可能是这样的
disable_functions =exec,passthru,shell_exec,system,proc_open
你要删掉
exec, shell_exec