Can't install with Ruby 2.5

[falsandtru]

Could you support Ruby 2.5?

$ bundle update
Fetching gem metadata from https://rubygems.org/............
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies.......
Using concurrent-ruby 1.0.5
Using i18n 0.9.1
Using minitest 5.10.3
Using thread_safe 0.3.6
Using tzinfo 1.2.4
Using activesupport 4.2.9
Using public_suffix 2.0.5
Using addressable 2.5.2
Using bundler 1.16.1
Using coffee-script-source 1.11.1
Using execjs 2.7.0
Using coffee-script 2.4.1
Using colorator 1.1.0
Using ruby-enum 0.7.1
Using commonmarker 0.17.7.1
Fetching ffi 1.9.18 (x64-mingw32)
Installing ffi 1.9.18 (x64-mingw32)
Gem::RuntimeRequirementNotMetError: ffi requires Ruby version < 2.5, >= 2.0. The
current ruby version is 2.5.0.
An error occurred while installing ffi (1.9.18), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.9.18'` succeeds before bundling.

In Gemfile:
  github-pages was resolved to 172, which depends on
    github-pages-health-check was resolved to 1.3.5, which depends on
      typhoeus was resolved to 0.8.0, which depends on
        ethon was resolved to 0.11.0, which depends on
          ffi
$ gem install ffi -v '1.9.18'
ERROR:  Error installing ffi:
        The last version of ffi (= 1.9.18) to support your Ruby & RubyGems was 1.9.18. Try installing it with `gem install ffi -v 1.9.18`
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.

[alexdevero]

I have the same problem when I try to install sass gem:

$ gem install sass
ERROR:  Error installing sass:
        The last version of ffi (< 2, >= 0.5.0) to support your Ruby & RubyGems was 1.9.18. Try installing it with `gem install ffi -v 1.9.18` and then running the current command again
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.

$ gem install ffi -v 1.9.18                                                            
ERROR:  Error installing ffi:                                                          
        The last version of ffi (= 1.9.18) to support your Ruby & RubyGems was 1.9.18. 
Try installing it with `gem install ffi -v 1.9.18`                                     
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.    

[busayyyo]

Same here when I tried installing jekyll:

C:\Windows\system32>gem install jekyll
ERROR:  Error installing jekyll:
        The last version of ffi (< 2, >= 0.5.0) to support your Ruby & RubyGems was 1.9.18. Try installing it with `gem install ffi -v 1.9.18` and then running the current command again
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.

C:\Windows\system32>gem install ffi -v 1.9.18
ERROR:  Error installing ffi:
        The last version of ffi (= 1.9.18) to support your Ruby & RubyGems was 1.9.18. Try installing it with `gem install ffi -v 1.9.18`
        ffi requires Ruby version < 2.5, >= 2.0. The current ruby version is 2.5.0.

[vbortone]

I used gem install ffi -f to get around this in Ruby 2,5 under Windows. I haven't tested it yet, but it gets me past the error message.

[busayyyo]

This helped bypass the errors, thank you!

[alexdevero]

Thanks a lot @vbortone! Your solution worked for me as well, on Windows 10. I was finally able to install sass gem after using it. 👍

[reageek]

the above install issue is resolved with -f flag. However it creates other issues with resources dependent on ffi which fails to validate against the lastest ruby versions. For example bundler install on a fresh jekyll project will result in the following:

$ bundler install
Fetching gem metadata from https://rubygems.org/............
ffi-1.9.18-x64-mingw32 requires ruby version < 2.5, >= 2.0, which is
incompatible with the current version, ruby 2.5.0p0

Seems the most current ruby version convention is problematic.

You can go around this by manually installing gems....

[ShmyhelskyiK]

@vbortone , thanks, really helped

[larskanis]

@tduehr, @headius Could you please publish a new release, so that ffi works out of the box on Windows ruby-2.5?

[Prometey13]

Thanks @vbortone! It helped

[sandeeppoloju]

@vbortone, Thank you very much. It fixed my problem.

[jbrach]

Thank You @vbortone. Fixed my problem

[VillSource]

Thank you so much.
It save my life.
@vbortone

[headius]

Sorry about this folks, I'm getting new FFI gems pushed as we speak for #602.

[vbortone]

Thanks, Charles! [image: photo] Vincent Bortone vbortone@gmail.com *•* www.vincentbortone.com <http://facebook.com/vincent.bortone> <http://us.linkedin.com/in/vincentbortone> <http://twitter.com/vbortone> <http://meetup.com/members/12908512> <http://klout.com/#/vbortone> <http://careers.stackoverflow.com/vbortone> On Tue, Feb 6, 2018 at 6:03 AM, Charles Oliver Nutter < notifications@github.com> wrote:

…

Sorry about this folks, I'm getting new FFI gems pushed as we speak for #599. On Mon, Feb 5, 2018 at 1:31 PM VillyFrost ***@***.***> wrote: > Thank you so much. > It save my life. > @vbortone <https://github.com/vbortone> > > — > You are receiving this because you were mentioned. > > > Reply to this email directly, view it on GitHub > <#598 (comment)>, or mute > the thread > <https://github.com/notifications/unsubscribe-auth/ AAAnl4fF3SLL9ppsHUt3kRFrf40pSwfQks5tRvSugaJpZM4RM-0O> > . > -- - Charlie (mobile) — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#598 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAWzxR0fER4seQum2HAXUPMJh6qN0uOGks5tSDF6gaJpZM4RM-0O> .

[claudiuconstantin]

I'm still getting ffi-1.9.18-x64-mingw32 requires ruby version < 2.5, which is incompatible with the current version, ruby 2.5.1p57 on Windows 10. Any updates on this?

[claudiuconstantin]

Oh, nevermind, I ran a bundle update and everything's fixed for me 👍

[gregsdennis]

Now getting the same thing for Ruby 2.7:

ffi requires Ruby version >= 2.2, < 2.7.dev.  The current ruby version is 2.7.0.0.

I forced the install of the gem, and now I get this when running bundle install

Fetching gem metadata from https://rubygems.org/.........
ffi-1.11.2-x64-mingw32 requires ruby version >= 2.2, < 2.7.dev, which is incompatible with the current version, ruby 2.7.0p0

---

NVM - bundle update fixed for ffi... now getting for nokogiri. Guess I'll go find that repo now...