bundler/setup (LoadError) - ruby-on-rails

Question

I cloned a repository and tried to run rails s. However, I received the following error:
/Users/me/.rbenv/versions/1.9.3-p547/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- bundler/setup (LoadError)
from /Users/me/.rbenv/versions/1.9.3-p547/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/me/workspace/bindo/config/boot.rb:7:in `<top (required)>'
from /Users/me/.rbenv/versions/1.9.3-p547/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/me/.rbenv/versions/1.9.3-p547/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from bin/rails:9:in `<main>'
My ruby version is:
ruby 1.9.3p547 (2014-05-14 revision 45962) [x86_64-darwin13.3.0]
My gem env command run from this project directory:
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.23.2
- RUBY VERSION: 1.9.3 (2014-05-14 patchlevel 547) [x86_64-darwin13.3.0]
- INSTALLATION DIRECTORY: /usr/lib/ruby/gems/2.0.0
- RUBY EXECUTABLE: /Users/me/.rbenv/versions/1.9.3-p547/bin/ruby
- EXECUTABLE DIRECTORY: /usr/lib/ruby/gems/2.0.0/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-13
- GEM PATHS:
- /usr/lib/ruby/gems/2.0.0
- /Users/me/.gem/ruby/1.9.1
- /Users/me/.rbenv/versions/1.9.3-p547/lib/ruby/gems/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
I read on Stack Overflow that this is a path error, however, I am not familiar enough to figure out what to trace or change to make this work. I'm looking but I feel I need some direction.

Answer 1

You likely have bundler gem missing.
To get it to work run (first command may need be executed with sudo, depending on your environment):
[sudo] gem install bundler
bundle install

Answer 2

On the mac, it is possible that you installed gems to ./vendor/bundle
in order to avoid to use SUDO.
You can find it if you run gem install bundler and at the end of the output you see the following:
Using turbolinks-source 5.1.0
Using turbolinks 5.1.0
Using uglifier 4.1.4
Bundle complete! 13 Gemfile dependencies, 68 gems now installed.
Bundled gems are installed into `./vendor/bundle`
If this is the case than in your app root directory delete the bundle directory.
After this run the following commands:
[sudo] gem install bundler
bundle install
It solved the problem for me