Ruby Passenger: no such file to load bundler - ruby

Question

I installed Phusion Passenger with Nginx, configured Nginx to point to the right directory, Then I ran webapp directory and this has downloaded the gemfiles, but it can't find the gems.
When I visit the site I get the standard Passenger error page which says:
Error message:
no such file to load -- bundler
Here's the full error: http://tinypic.com/view.php?pic=vpx36r&s=7
I've do a gem install bundler so I know bundler is installed, but I think it's looking in the wrong place for the gems.
It appears as if Passenger has installed ruby-enterprise-1.8.7 and it looks like 1.8 was already installed in this box.
gem env gives me the following:
- RUBYGEMS VERSION: 1.4.2
- RUBY VERSION: 1.8.7 (2009-12-24 patchlevel 248) [x86_64-linux]
- INSTALLATION DIRECTORY: /opt/local/ruby-enterprise-1.8.7-2010.01/lib/ruby/gems/1.8
- RUBY EXECUTABLE: /opt/local/ruby-enterprise-1.8.7-2010.01/bin/ruby
- EXECUTABLE DIRECTORY: /opt/local/ruby-enterprise-1.8.7-2010.01/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /opt/local/ruby-enterprise-1.8.7-2010.01/lib/ruby/gems/1.8
- /root/.gem/ruby/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
From what I've read it appears to be a path issue, but I don't know what the best course of action is to fix it.
Here's the output of
which ruby:
/opt/local/ree/bin/ruby
which bundle:
/opt/local/ree/bin/bundle
I've run bundle install in that directory and it's given me:
Your bundle is complete! It was installed into ./vendor/bundle

Answer 1

it looks like you have some path issues (as you already stated). try to check why you have two different paths for your ruby installation.
I mean, according to your gem env output, you have some installation on
/opt/local/ruby-enterprise-1.8.7-2010.01/
but you also have ruby and bunlder under
/opt/local/ree/
so, start from here to check if all the paths are correct and/or you haven't any double installations (well, it's just enough to check if your ENVs are coherent).
Another issue could be related to your nginx.conf, you should have something like this:
[...]
http {
passenger_root /your/path/to/passenger/gem;
passenger_ruby /path/to/ruby;
[...]
}
UPDATE (just saw additional comments with nginx.conf):
as you can see, there's a problem with paths: you have two paths for ruby and gems installs:
/opt/local/ruby-enterprise....
and
/opt/local/ree
you should remove the latter (not phisically, just review ENVs to point to the first one)
EDIT:
to change your env, you can append the following line to your /etc/bash.bashrc (or whaterver file is loaded from your shell by default):
PATH="/opt/local/ruby-enterprise-1.8.7-2010.01/bin:$PATH"
then logout and login, or for a quick test, launche this command from shell:
source /etc/bash.bashrc
now, retry to see what binary is used by default with:
which ruby
which gem
which rake
gem env
...
everything should have the /opt/local/ruby-enterprise-1.8.7-2010.01/ prefix (that's what is used from nginx and passenger configs).
UPDATE2: from the comments, it turned out that you have at least 3 ruby installs:
ruby from your package manager in /usr/lib/ruby/ (are you using ubuntu linux?)
a ruby in /opt/local/ree/
a ruby in /opt/local/ruby-enterprise-....
at this point, the best thing to do is:
uninstall all the rubys under /opt/local/ and all their gems
uninstall (purge) system provided ruby packages (you don't need it)
install and setup RVM: https://rvm.io
re-install passenger using RVM: https://rvm.io/integration/passenger/
fix nginx.conf to use passenger path and ruby