Question

So I’m new to rails and am actually following a video tutorial from Lynda.com in order to learn it. I didn’t follow the steps to install on the video because I heard of RVM and its been great so far with getting everything setup. But I’m still early on in the video and can’t get passed something really simple… so I’m hoping someone can help me out.

Heres some background:

• I have RVM installed and created
  1.8.7@rails2.3.8. I was able to install both ruby and rails, and
  everything here is fine. I even
  setup a global gemset for mysql and
  passenger.

• I’m using passenger instead of
  WEBrick (which the tutorial uses) and
  I was even able to get the apache
  module loaded and everything is
  working fine when I create a rails
  app. I can go to simple-cms.local and I
  see the intro page fine.

So here is the issue. While following the video, I got to the point where I script/generate controller say and it created the controller fine, no errors. I then proceeded to define an action “hello” in the controller, and the corresponding view “hello.rhtml” in the app/view/say folder.

Now, when I try to visit simple-cms.local, it still works, but when I try to visit simple-cms.local/say/hello.rhtml, I get an error!

Ruby on Rails application could not be
started

The application has exited during
startup (i.e. during the evaluation of
config/environment.rb). The error
message can be found below. To solve
this problem, please follow any
instructions in the error message.

Error message: Missing the Rails 2.3.8
gem. Please gem install -v=2.3.8
rails, update your RAILS_GEM_VERSION
setting in config/environment.rb for
the Rails version you do have
installed, or comment out
RAILS_GEM_VERSION to use the latest
version installed.

So what do I do here? I mean rails 2.3.8 is installed, so why is it telling me to install it again?

---

UPDATE:

I ran gem environment from within the app directory and got this

RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.8.7 (2010-08-16 patchlevel 302) [i686-darwin10.4.0]
  - INSTALLATION DIRECTORY: /Users/user/.rvm/gems/ruby-1.8.7-p302@rails2
  - RUBY EXECUTABLE: /Users/user/.rvm/rubies/ruby-1.8.7-p302/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/user/.rvm/gems/ruby-1.8.7-p302@rails2/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-darwin-10
  - GEM PATHS:
     - /Users/user/.rvm/gems/ruby-1.8.7-p302@rails2
     - /Users/user/.rvm/gems/ruby-1.8.7-p302@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

Then ran script/console, which worked and then ran Gems.path, which returned

["/Users/user/.rvm/gems/ruby-1.8.7-p302@rails2", "/Users/user/.rvm/gems/ruby-1.8.7-p302@global"] 

Looks fine to me, what about you guys?

---

UPDATE 2:

Ok, so nothing has worked for me! I haven’t yet tried Passenger Standalone, but I need to use apache and I read that standalone uses nginx. What I tried so far is started from scratch, rvm implode and then installed rvm again, ruby 1.8.7, passenger, mysql, rails 2.3.8, and thats it. I still can’t get passed the default page when visiting my app! I also then tried following the guides Chris Johnsen linked to in the comments to no avail.

All ideas are welcome…

Answer 1

The issue was that I was installing passenger into the global gemset, which shouldn’t be a problem, but it was.

I uninstalled passenger from the global gemset, and installed it into the project gemset that I’m using. This solved the missing rails gem error, and now I’m getting a 500 error when trying to visit simple-cms.local/say/hello. I’ll create a new question for that and mark this one solved!