Unable to install 'cocoapods' gem from rubygems.org (bad response backend read error)

Sometimes ,the default source for gem, https://rubygems.org/, can't be accessed.

It should be removed by command:

gem sources -r https://rubygems.org/

And then new source should be added:

gem sources -a https://ruby.taobao.org/

Update the cache:

gem sources -u

You can check sources with:

gem sources

Finally , you can install cocoapods:

sudo gem install cocoapods

Use the below mentioned steps to install Cocoapods in your machine,I solved the same issue with be below mentioned steps

1.Install command line tools using the command

xcode-select --install

2.Install Home brew by

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

3.Install Ruby using homebrew

brew install ruby

4.Check Ruby version

ruby -v

5.Install Ruby

gem source -a http://rubygems.org/

6.gem install cocoapods

sudo gem install cocoapods

or

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

7.Go to below folder

cd ~/.cocoapods/repos

8.Run the below command

git clone https://github.com/CocoaPods/Specs.git master

9.Go to the directory where Podfile is present and run

pod install

It work for me:

Remove https source by command:

gem sources -r https://rubygems.org/

And then new http source should be added:

gem sources -a http://rubygems.org/

Update the cache:

gem sources -u