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I recently install clean ubuntu14.04 virtual machine in vware fusion and updated it. I am trying to install the mime-tyes-data by

sudo gem install mime-types-data -v 3.2015.1120

The error shows

ERROR: Error installing mime-types-data: mime-types-data requires Ruby version >= 2.0.

Before that I already update ruby version by

sudo apt-get install ruby2.0

sudo ln -sf /usr/bin/ruby2.0 /usr/bin/ruby

It seems my version of ruby is 2.0 already, but the error still exists.

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4 Answers 4

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10

I was facing the same problem trying to install rails with sudo. I was getting: ERROR: Error installing mime-types-data: mime-types-data requires Ruby version >= 2.0.

The thing is ruby -v gives me ruby 2.2.1p85 while sudo ruby -v gives me ruby 1.9.3p484, so instead of sudo gem install rails I just did gem install rails and it worked.

That is where I found my solution: https://github.com/jekyll/jekyll/issues/3558

Hope it helps.

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4

I had the same error as others here. I was trying to install JRuby and kept getting

ERROR: Error installing mime-types-data: mime-types-data requires Ruby version >= 2.0

From this page I got that JRuby doesn't use the version of ruby you might think it does. So you can check what it's using by doing:

jruby -v

The version of Ruby is in brackets. Then to upgrade the version of Ruby being used I got a tip from this page which said to add an env var:

set JRUBY_OPTS=--2.0

All working better now, well no error anymore!

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2

To fix, edit Gemfile

gem "mime-types", '2.6.2'

Then run in terminal.

sudo apt-get install -f

if that does not work, try 

sudo apt-get update
sudo apt-get dist-upgrade

as the update to bbb-record-core now includes the above fix

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7
  • The error I described occurred when I am trying to install rails after ruby installed. Could you tell me where the Gemfile located when installing rails?
    – Peterxwl
    Commented Mar 27, 2016 at 3:59
  • Did you create an app using rails new APP_NAME. If you didn't then create a new one. Then Gemfile will be automatically created. In the Gemfile add the line. Let me know if you face any problem.
    – Mohammad Shahadat Hossain
    Commented Mar 27, 2016 at 4:01
  • Sorry you may misunderstood my words. I installed ruby, then want to install ruby on rails, not create an app. When I am installing rails, the error occurs shown above. I cannot successfullly install rails framework yet.
    – Peterxwl
    Commented Mar 27, 2016 at 4:22
  • why you want to install mime-types-data -v 3.2015.1120 before rails framework installation. First, install rails framework successfully then install mime-types-data -v 3.2015.1120 as gem. In that case, i think you can proceed with the second and third steps. Lets see if the problem solves in your side.
    – Mohammad Shahadat Hossain
    Commented Mar 27, 2016 at 4:29
  • I tried installingl rails framework and result is failure. The error shows : ERROR: Error installing mime-types-data: mime-types-data requires Ruby version >= 2.0. The same error shown above.
    – Peterxwl
    Commented Mar 27, 2016 at 17:09
0

Fixed problem by downgrading from rails '4.2.6' to rails '4.1.0'.

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