mac os sierra pod install command failure

Question

After moving to Mac OS Sierra, I'm facing problem to install cocoapods.

1. Every time I run sudo gem install cocoapods --pre every thing installed well, but while trying to install a pod, the terminal stack on Setting up CocoaPods master repo. Already updated the system with sudo gem update --system and still got the same issue, searched online to found old answers to use pod install --verbose Ss. I found in THIS answer fail again tells to install it manually.
   NOTE: I have the latest version of 'Command Line Tools'. Any suggestion or how to install master repo manually?

2. Even when empty pod (i.e. without any pod name in it) is installed it gives

/Library/Ruby/Site/2.0.0/rubygems/dependency.rb:315:in `to_specs': Could not find 'cocoapods' (>= 0) among 66 total gem(s) (Gem::LoadError)
Checked in 'GEM_PATH=/Users/my_name/.gem/ruby/2.0.0:/Library/Ruby/Gems/2.0.0:/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/gems/2.0.0', execute `gem env` for more information
    from /Library/Ruby/Site/2.0.0/rubygems/dependency.rb:324:in `to_spec'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_gem.rb:64:in `gem'
    from /usr/local/bin/pod:22:in `'

Answer 1

Follow the instruction given below. It may help you.

1. check pod version using command given below

   pod --version

2. if there is any version installed remove it by using the command

   sudo gem uninstall cocoapods

3. restart your mac and reinstall again using the command

   sudo gem install -n /usr/local/bin cocoapods