ERROR: Gem bundler is not installed, run `gem install bundler` first

Question

Hi I've been having a probably trying to install the Ruby gem bundle. I follow the directions gem install bundle after I receive this message, but it still doesn't work when I type bundle -v. I also type

which bundle and receive

/Users/edmundmai/.rvm/bin/bundle 

so it exists!! So why does it not work!! Is there something wrong with the mysterious $PATH that I don't get? (I'm a noob).

Here's my .bash_profile:

PATH=$PATH:~/bin export PATH [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function* [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function 

Here's my .bashrc :

PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"  

Here's my gem env:

RubyGems Environment: - RUBYGEMS VERSION: 1.8.24 - RUBY VERSION: 1.9.3 (2012-04-20 patchlevel 194) [x86_64-darwin11.3.1] - INSTALLATION DIRECTORY: /Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd - RUBY EXECUTABLE: /Users/edmundmai/.rvm/rubies/ruby-1.9.3-p194/bin/ruby - EXECUTABLE DIRECTORY: /Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/bin - RUBYGEMS PLATFORMS:   - ruby   - x86_64-darwin-11 - GEM PATHS:    - /Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd    - /Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@global - GEM CONFIGURATION:    - :update_sources => true    - :verbose => true    - :benchmark => false    - :backtrace => false    - :bulk_threshold => 1000    - "install" => "--no-rdoc --no-ri"    - "update" => "--no-rdoc --no-ri" - REMOTE SOURCES:    - http://rubygems.org/ 

echo $PATH

/Users/edmundmai/.rvm/bin:/Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/bin:/Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@global/bin:/Users/edmundmai/.rvm/rubies/ruby-1.9.3-p194/bin:/Users/edmundmai/.rvm/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/Users/edmundmai/bin:/Users/edmundmai/bin

UPDATE So after trying to go through the RoR tutorial again, I repeated a few of the steps from earlier in the chapter in one of my two terminal windows (let's call them Terminal #1 and Terminal #2). Terminal #2 still doesn't work (the command line isn't on any directory, just the default directory) while Terminal #1 (at my sample_app directory) works. I think rvm get head && rvm reload might be the key? But does that mean I have to run that every time I open my terminal? Check out my terminal #1 commands for before and after (I deleted some of the output so that it would be more clear what my input lines were):

Edmunds-MacBook-Pro:sample_app edmundmai$ bundle -v ERROR: Gem bundler is not installed, run `gem install bundler` first. Edmunds-MacBook-Pro:sample_app edmundmai$ gem install ERROR:  While executing gem ... (Gem::CommandLineError) Please specify at least one gem name (e.g. gem build GEMNAME) Edmunds-MacBook-Pro:sample_app edmundmai$ rvm -v   rvm 1.15.8 (master) by Wayne E. Seguin <[email protected]>, Michal Papis     <[email protected]> [https://rvm.io/]  Edmunds-MacBook-Pro:sample_app edmundmai$ rspec spec/ No DRb server is running. Running in local process instead ... ........  Finished in 0.36709 seconds 8 examples, 0 failures  Randomized with seed 59500  Edmunds-MacBook-Pro:sample_app edmundmai$ subl . Edmunds-MacBook-Pro:sample_app edmundmai$ bundle install --binstubs=./bundler_stubs Using rake (0.9.2.2)  ... ... (**list of stuff) Using uglifier (1.2.3)  Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed. Edmunds-MacBook-Pro:sample_app edmundmai$ bundle show bundler /Users/edmundmai/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/bundler-1.2.0 

I'm extremely unclear as to what the $PATH does. If you guys need any more info, feel free to tell me and I'll provide it.

Answer 1

I think this is the problem: You have bundler installed to a specific gemset, which is why it's only available when you're in your app's directory (I'm assuming there's a .rvmrc file in there).

You have a few options:

1. Install bundler to a global gemset. rvm gemset use global && gem install bundler
2. If you have Homebrew installed, just do brew install ruby and avoid rvm altogether. (There's also rbenv and ry as alternatives to rvm, but I just use 1.9.3 across all my apps, so Homebrew is fine.)

For reference, $PATH is a shell environmental variable containing a list of directories that hold executables (e.g., echo, ls, vim, etc.). It's intrinsic to shells.