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I tried installing a gem first gem install rdoc-data After it successfully installed, I tried rdoc-data --install However, I get the error: Your ruby version 2.1.1 is not supported, only 1.8.7, 1.9.2, 1.9.3, 2.0.0

Does this mean I have to downgrade to Ruby 2.0.0?

I tried running ri File to read the documentation however all I get is the message: Nothing known about File.

Did some research into older Stack Overflow posts and someone suggested running rvm docs generate however all I get is "Currently 'rvm docs ...' does not work with non-rvm rubies.

Mogsdad
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Jimmy
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  • If your ruby was not installed by `rvm`, then `rvm` tag is inappropriate. Also, please specify where then it does come from. Are you on Debian, and installed `ruby` by `apt`? Did you compile the sources yourself? Did you use RubyInstaller for Windows? – Amadan Jun 11 '14 at 01:09
  • Ruby came installed on my mac and I just had to push a couple updates. I believe I had to install rvm on my own, which I can't remember the entire process. I just found a guide online since I was pretty new to this ruby at the time. – Jimmy Jun 11 '14 at 01:40
  • Possible duplicate of [Why does my Ruby 'ri' tool not return results in command prompt?](http://stackoverflow.com/questions/1575373/why-does-my-ruby-ri-tool-not-return-results-in-command-prompt) – Amin Shah Gilani Sep 30 '16 at 09:56

2 Answers2

2

Install ri documentation first:

rvm docs generate-ri
Moin Haidar
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0

I used

gem install rdoc-data
gem rdoc --all --ri --no-rdoc

Don't forget to open a new terminal window, then ri "test" ri "if" etc should thereafter.

These commands came from here and here

stevec
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