How to fix 'could not find compatible version for gem "rails"'?

Question

Im literaly bumping my head into a wall and I can not find a solution by myself about this problem.

I'm starting a project with Solidus , a Spree commerce fork. I played around with the gem for a litle while and now that I am ready to get serious and start to develop , I create a new project ad I'm bumping into this nasty error :

Bundler could not find compatible versions for gem "rails":
  In snapshot (Gemfile.lock):
    rails (= 5.1.2)

  In Gemfile:
    rails (~> 5.1.2)

    solidus was resolved to 1.0.0, which depends on
      solidus_core (= 1.0.0) was resolved to 1.0.0, which depends on
        rails (~> 4.2.0)

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

and bundle update is not solving my problem... I am running out of solution and will appreciate some hands in help in how to fix this problem.

Thanks

run bundle install first, then try run bundle exec rails server — widjajayd, Jun 27 '17 at 17:32
@widjajayd bundle install don't go through and this error pops — , Jun 27 '17 at 17:36

score 5 · Answer 1 · answered Jun 27 '17 at 17:51

Bundler is doing you a favor here by showing you that you have incompatible version requirements for the rails gem.

You have rails (~> 5.1.2) listed in your gemfile and the solidus gem has a dependency on rails (~> 4.2.0), so there is a conflict about which version of rails your app should use.

Is there a reason you are using solidus version 1.0.0? It looks like the latest version of solidus is 2.0.2 at present. Later versions of solidus will have a more recent dependency listed for rails, which will allow your application to use rails 5+.

Update the version of solidus in your gemfile to something more recent and see if that allows bundler to install successfully.

How to fix 'could not find compatible version for gem "rails"'?

1 Answers1