Can't install Rails 4.2.6 with Ruby 1.9.3

[urimaro]

Steps to reproduce

gem install rails

Actual behavior

Following error has occurred coz mime-types-data requires Ruby version >= 2.0.

$ gem install rails
Fetching: i18n-0.7.0.gem (100%)
Fetching: json-1.8.3.gem (100%)
Building native extensions.  This could take a while...
Fetching: thread_safe-0.3.5.gem (100%)
Fetching: tzinfo-1.2.2.gem (100%)
Fetching: minitest-5.8.4.gem (100%)
Fetching: activesupport-4.2.6.gem (100%)
Fetching: rack-1.6.4.gem (100%)
Fetching: rack-test-0.6.3.gem (100%)
Fetching: mini_portile2-2.0.0.rc2.gem (100%)
Fetching: nokogiri-1.6.7.2.gem (100%)
Building native extensions.  This could take a while...
Fetching: loofah-2.0.3.gem (100%)
Fetching: rails-html-sanitizer-1.0.3.gem (100%)
Fetching: rails-deprecated_sanitizer-1.0.3.gem (100%)
Fetching: rails-dom-testing-1.0.7.gem (100%)
Fetching: builder-3.2.2.gem (100%)
Fetching: erubis-2.7.0.gem (100%)
Fetching: actionview-4.2.6.gem (100%)
Fetching: actionpack-4.2.6.gem (100%)
Fetching: activemodel-4.2.6.gem (100%)
Fetching: arel-6.0.3.gem (100%)
Fetching: activerecord-4.2.6.gem (100%)
Fetching: globalid-0.3.6.gem (100%)
Fetching: activejob-4.2.6.gem (100%)
Fetching: mime-types-data-3.2016.0221.gem (100%)
ERROR:  Error installing rails:
    mime-types-data requires Ruby version >= 2.0.

System configuration

Rails version: 4.2.6

Ruby version: 1.9.3-p551

[Bijendra]

Workaround for this:
gem install rails -v=4.2.6
```
ERROR: Error installing rails:
mime-types-data requires Ruby version >= 2.0.

Install
   gem install mime-types -v 2.6.2
Now,
    gem install rails works

[vipulnsward]

Thanks for reporting!
Can you open this for mime-types/mime-types-data gem, as it is related to them. cc @schneems

[urimaro]

@Bijendra
Thanks for your reply.
I tried the commands below but it doesn't make it.
Did you try it?

$ gem install mime-types -v 2.6.2
Fetching: mime-types-2.6.2.gem (100%)
Successfully installed mime-types-2.6.2
1 gem installed
Installing ri documentation for mime-types-2.6.2...
Installing RDoc documentation for mime-types-2.6.2...
$ gem install rails -v 4.2.6
Fetching: mail-2.6.4.gem (100%)
Fetching: actionmailer-4.2.6.gem (100%)
Fetching: thor-0.19.1.gem (100%)
Fetching: railties-4.2.6.gem (100%)
Fetching: bundler-1.11.2.gem (100%)
Fetching: concurrent-ruby-1.0.1.gem (100%)
Fetching: sprockets-3.6.0.gem (100%)
Fetching: sprockets-rails-3.0.4.gem (100%)
Fetching: rails-4.2.6.gem (100%)
ERROR:  Error installing rails:
    mime-types-data requires Ruby version >= 2.0.

[urimaro]

@vipulnsward
Thanks for your reply.

Can you open this for mime-types/mime-types-data gem, as it is related to them.

Do you expect me to create an issue for mime-types/mime-types-data gem?
I don't think it'll resolve this issue.

I found lines from Gemfile.lock which is made when I install Rails 4.2.6 with Ruby 2.3.1.

    mail (2.6.4)
      mime-types (>= 1.16, < 4)
    mime-types (3.0)
      mime-types-data (~> 3.2015)
    mime-types-data (3.2016.0221)

Because of mime-types (>= 1.16, < 4), the latest mime-types(3.0) was install
in spite of that mime-types 3.0 requires Ruby 2.

The mime-types author said he had released mime-types 2.99 (requires Ruby 1.9.2 or later).
< The latest version is 2.99.1.
mime-types/mime-types-data#1

According to the above, I think it causes this issue that the mail gem doesn't consider the mime-type version.
What do you think about it?

[urimaro]

I found the PR: Pin mime-types to < 3.0 on Ruby 1.9.3.
This PR was merged to master yesterday.

[urimaro]

Workaround: Using Bundler and specify the mime-types version

1. install bundler
$ gem install bundler

2. create Gemfile
$ bundle init

3. edit Gemfile

   • comment in gem rails
   • add gem 'mime-types', '< 3'

   e.g.

   source "https://rubygems.org"
   
   gem 'rails'
   gem 'mime-types', '< 3'
   

4. install gems
   $ bundle install

[Bijendra]

@urimaro Yes, i had tried and works perfect for me. The below sequence i tried.

      `514  rvm gemset create rails_test21
       515  rvm gemset list

       517  rvm gemset use rails_test21
       518  gem install mime-types -v 2.6.2
       519  gem install rails
       520  gem uninstall rails
       521  ruby -v
       522  history
      $ rails -v
      Rails 4.2.6
      $ ruby -v
      ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-linux]

`

[urimaro]

@Bijendra
Thanks.
After your reply, I thought that gems which have already installed are used.
So you suggested gem install mime-types -v 2.6.2.
But it didn't make it.
Hmm..
The reason why v2.6.2 wasn't used is the newer gem may have remained..
Anyway, thanks for your helping.