今天在写一个新项目的时候，使用cocoapods在执行$ pod install的时候，终端提示Generating Pods project Abort trap: 6
解决办法：
删除所有cocoapods gems，
依次执行以下命令：
sudo gemuninstallcocoapods
sudo gemuninstallcocoapods-core
sudo gemuninstallcocoapods-deintegrate
sudo gemuninstallcocoapods-downloader
sudo gemuninstallcocoapods-plugins
sudo gemuninstallcocoapods-search
sudo gemuninstallcocoapods-stats
sudo gemuninstallcocoapods-try
sudo gemuninstallcocoapods-trunk
然后安装最新发布版本：
sudo geminstallcocoapods--pre
