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

None of previous solutions worked for me...

My situation is a fresh clean install of macOS Catalina + XCODE;

It happen that I had to first run Xcode before install cocoa pods (in first run, Xcode setups machine with tools);

After that, cocoa pods worked fine.