Problem with rails when trying to do rails-v

Question

My friend just shared me this new application and I pulled it from heroku

I was just trying to do rails -v and I got

denniss$ rails -v
/Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/resolver.rb:132:in `block in resolve': Could not find gem 'selenium-webdriver', required by 'capybara', in any of the sources (Bundler::VersionConflict)
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/resolver.rb:130:in `catch'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/resolver.rb:130:in `resolve'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/definition.rb:153:in `resolve'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/definition.rb:93:in `specs'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/definition.rb:137:in `specs_for'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/definition.rb:126:in `requested_specs'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/environment.rb:23:in `requested_specs'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:11:in `setup'
 from /Users/denniss/.rvm/gems/ruby-1.9.2-rc2/gems/bundler-1.0.0.rc.5/lib/bundler.rb:95:in `setup'
 from /Users/denniss/Sites/mogo-production/config/boot.rb:5:in `<top (required)>'
 from script/rails:8:in `require'
 from script/rails:8:in `<main>'

Edit: I did "bundle check" and I got this

/Library/Ruby/Site/1.8/rubygems.rb:779:in `report_activate_error': Could not find RubyGem bundler (>= 0) (Gem::LoadError)
    from /Library/Ruby/Site/1.8/rubygems.rb:214:in `activate'
    from /Library/Ruby/Site/1.8/rubygems.rb:1082:in `gem'
    from /usr/bin/bundle:18

Edit2:

Okay, the most up to date error that I gate after successfully installing rmagick is this. I was able to do rake db:create and migrate. I tried to do rails server (using rails3) and I get this error

/Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/aws-s3-0.6.2/lib/aws/s3/extensions.rb:206:in `const_missing': uninitialized constant ActiveSupport::CoreExtensions (NameError)
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/facebooker-1.0.74/lib/facebooker/adapters/adapter_base.rb:6
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/facebooker-1.0.74/lib/facebooker.rb:259
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:64:in `require'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:64:in `require'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:62:in `each'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:62:in `require'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:51:in `each'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler/runtime.rb:51:in `require'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/bundler-1.0.0.rc.5/lib/bundler.rb:107:in `require'
from /Users/denniss/Sites/mogo-production/config/application.rb:5
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/railties-3.0.0.rc/lib/rails/commands.rb:28:in `require'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/railties-3.0.0.rc/lib/rails/commands.rb:28
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/railties-3.0.0.rc/lib/rails/commands.rb:27:in `tap'
from /Users/denniss/.rvm/gems/ree-1.8.7-2010.02/gems/railties-3.0.0.rc/lib/rails/commands.rb:27
from script/rails:9:in `require'
from script/rails:9

Answer 1

The application requires a gem that isn't installed, in this case "selenium-webdriver." Try bundle check to see if there are additional errors, then proceed to install the gems you're missing.

Edit from comments:

In your first code block you're using MRI 1.9, then you moved on to MRI 1.8 and now you're suddenly using REE. That tells me that you've got (at least) three different Ruby interpreters on your computer, which isn't making your life easier. In all likelyhood, you've got gems all over the place as well. Do you have previous experience with RVM? If not, my suggestion would be to remove RVM, stick with one Rails interpreter (system default, MRI 1.8) and go from there.

Answer 2

Installing rmagick is nearly a rite of passage for Rails developers. It's horrifying at first, but ultimately not that complicated. What the gem really wants to see during native compilation is an install of ImageMagick.

On Linux, I've usually had good luck with whatever package manager is in use. sudo apt-get install imagemagick for example.

If you are on OS X, then it's a bit more work. I've used port several times, and most recently brew to install ImageMagick. If you're on OS X, then head for Google and search for instructions with whatever package management system you happen to be using.