Xcode8 pod install 报错 “Generatin

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 gem uninstall cocoapods
sudo gem uninstall cocoapods-core
sudo gem uninstall cocoapods-deintegrate
sudo gem uninstall cocoapods-downloader
sudo gem uninstall cocoapods-plugins
sudo gem uninstall cocoapods-search
sudo gem uninstall cocoapods-stats
sudo gem uninstall cocoapods-try
sudo gem uninstall cocoapods-trunk

然后安装最新发布版本：

sudo gem install cocoapods --pre

以上原文链接在这里
-----------------------------我是分割线-----------------------------

这时候有可能会提示以下错误：

ERROR:Could not find a valid gem 'cocoapods' (>= 0), here is why:

Unable to download data from https://ruby.taobao.org/ - SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://ruby.taobao.org/specs.4.8.gz)

原因是taobao Gems 源已停止维护，解决办法在这里