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Stephen Koller
5,830 PointsCan't use --version w/ multiple gems.
After following the steps to install RVM on OS X (El Capitan), when I type in "gem install rails --version 5.0.0" I receive an error message:
"ERROR: Can't use --version w/ multiple gems. Use name:ver instead."
Has anyone else seen this? How should I go about resolving it?
3 Answers
Ethan Rivas
9,979 PointsOK, try this steps:
1) Select your Ruby version from your RVM list or Install a new one:
rvm listrvm use ruby-2.3.0 // This is the ruby version
Install a Ruby version:
rvm install ruby-2.3.0 // Change for the Ruby version you want
2 ) Create a gemset for that Ruby version:
rvm gemset create gemset_name // Change gemset_name for the name that you want
3) Select the gemset:
rvm gemset use gemset_name
4) Now install your Rails version (in this case Rails 5):
- For the last Rails 5 gem (Beta):
gem install rails -v 5.0.0.beta1 --preFor the Rails 5 gem stable (Not beta)
gem install rails -v 5.0.0
That should work, reply to this answer if you need help or if this doesn't works.
Stephen Koller
5,830 PointsAfter some Googling, it looks like I should not have removed "-n" from my .gemfile .
I replaced the "-n" and ran "gem install rails --version 5.0.0" but now I'm getting errors and warnings all over the place.
"/Users/stephenkoller/.rvm/gems/ruby-2.3.1/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:366:in `block in execute': Failed to complete compile task (RuntimeError)"
Stephen Koller
5,830 PointsThanks for the swift reply, Ethan Rivas. Before I saw your answer, I tried another method that I found here: [http://tomordonez.com/installing-rails-5-on-mac-osx-el-capitan/].
I'm not entirely sure why, but his process seemed to work:
$ brew uninstall xz
$ gem install nokogiri
$ gem install rails -v 5.0.0
Ethan Rivas
9,979 PointsUhh, I don't know what the brew uninstall xz does but if that worked for you i'm happy :p, If you need something else or you have a question you can tag me and I'll try to help :), see you around.