ERROR: Error installing cocoapods: ERROR: Failed to build gem native extension

Question

I am trying to install cocoapods to my MacBook Pro running with OSX 10.9.1 (new Mavericks) and after type gem install cocoapods I get the following error:

Answer 1

If none of above works then follow these steps

1. sudo xcode-select --switch /Library/Developer/CommandLineTools
2. sudo gem install cocoapods

If you get error like this '

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /usr/bin directory

.'

then go to step 3

3. $ sudo gem install -n /usr/local/bin cocoapods