The process has been signaled with signal '5'. 解决办法

macos10.11安装composer ,进入php项目目录，执行composer install报错,求解决

[Symfony\Component\Process\Exception\RuntimeException]

The process has been signaled with signal "5".

追踪报错 可以执行 composer install -vvv

解决办法：

$brew install svn
$brew link --overwrite subversion