1.安装brew

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2.用brew安装ruby

brew install ruby

3.用gem安装sigh

sudo gem install sigh

4.sigh resign

按照下面步骤，就可以安装成功！

iOS ipa包进行重新签名