pod setup,when staying on “Setting up Cocoapods Master repo”

Running pod command:

pod install 

Try running in verbose mode:

pod install --verbose

This'll show you what cocoapods is up to:

Setting up CocoaPods master repo

Cloning spec repo `master` from `https://github.com/CocoaPods/Specs.git` (branch `master`)
  $ /usr/bin/git clone 'https://github.com/CocoaPods/Specs.git' master
  Cloning into 'master'...

Solve:

Step-1: pod repo remove master

To get a progression, you can clone master yourself:

pod repo remove master

Step-2: download data from git:

git clone https://github.com/CocoaPods/Specs.git ~/.cocoapods/repos/master

Step-3: After complete download ,run pod setup command 

pod setup