Unable to Install Rails and other Ruby Gems on Mac OS El Capitan 10.11.3

Question

I have properly setup homebrew and Ruby Version 2.3.1 following this site https://gorails.com/setup/osx/10.11-el-capitan . However, when I tried to install Rails or other ruby gems I have gotten this error -

sudo gem install rails
Building native extensions.  This could take a while...
ERROR:  While executing gem ... (TypeError)
no implicit conversion of nil into String

I've tried searching for the answer here on the forum but couldn't find a solution. Any help would be appreciated.

Answer 1

Back in the days i would get errors while installing Rails aswell, but nowadays we have Installrails.com

I have never encountered any errors while following the tutorials on that site. You might want to give that a try.