Ruby Not Detecting Gems

Question

For some reason, Ruby can't seem to under stand that I installed the AppFog gem (af). When I run af, I get this:

/Users/myface13214/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find af (>= 0) amongst [Saikuro-1.1.0, actionmailer-3.2.8, actionpack-3.2.8, activemodel-3.2.8, activerecord-3.2.8, activeresource-3.2.8, activesupport-3.2.8, arel-3.0.2, awesome_print-1.1.0, bcrypt-ruby-3.0.1, bourbon-2.1.2, builder-3.0.4, cancan-1.6.8, capistrano-2.13.5, capybara-2.0.0, cgi_multipart_eof_fix-2.5.0, childprocess-0.3.6, chronic-0.3.0, chunky_png-1.2.6, churn-0.0.24, code_analyzer-0.3.0, coffee-rails-3.2.2, coffee-script-2.2.0, coffee-script-source-1.4.0, colored-1.2, compass-0.12.2, compass-rails-1.0.3, configatron-2.9.1, cover_me-1.2.0, daemons-1.1.9, daemons-1.0.10, devise-2.1.2, diff-lcs-1.1.3, erubis-2.7.0, excon-0.16.10, execjs-1.4.0, factory_girl-4.1.0, factory_girl_rails-4.1.0, fastthread-1.0.7, ffi-1.1.5, figaro-0.5.0, flay-1.4.3, flog-2.5.3, fssm-0.2.9, gem_plugin-0.2.3, hashie-1.2.0, highline-1.6.15, hike-1.2.1, hirb-0.7.0, i18n-0.6.1, journey-1.0.4, jquery-rails-2.1.3, json-1.7.5, json_pure-1.7.5, kgio-2.7.4, libwebsocket-0.1.6, mail-2.4.4, main-4.7.1, metric_fu-2.1.1, metrical-0.1.0, mime-types-1.19, mongrel-1.2.0.pre2, multi_json-1.3.7, net-scp-1.0.4, net-sftp-2.0.5, net-ssh-2.6.1, net-ssh-gateway-1.1.0, nokogiri-1.5.5, orm_adapter-0.4.0, polyglot-0.3.3, progressbar-0.11.0, rack-1.4.1, rack-cache-1.2, rack-ssl-1.3.2, rack-test-0.6.2, rails-3.2.8, rails_best_practices-1.12.0, railties-3.2.8, raindrops-0.10.0, rake-10.0.1, rcov-0.9.11, rdoc-3.12, reek-1.2.12, ripper_ruby_parser-0.0.8, roodi-2.1.0, rspec-core-2.12.0, rspec-expectations-2.12.0, rspec-mocks-2.12.0, rspec-rails-2.12.0, ruby2ruby-1.2.5, ruby_parser-2.3.1, rubyzip-0.9.9, sass-3.2.3, sass-rails-3.2.5, selenium-webdriver-2.26.0, sexp_processor-3.2.0, sprockets-2.1.3, sqlite3-1.3.6, syntax-1.0.0, thor-0.16.0, tilt-1.3.3, treetop-1.4.12, tzinfo-0.3.35, uglifier-1.3.0, unicorn-4.4.0, vcr-2.3.0, warden-1.2.1, websocket-1.0.2, xpath-1.0.0, yamler-0.1.0] (Gem::LoadError)
    from /Users/myface13214/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /Users/myface13214/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/site_ruby/1.9.1/rubygems.rb:1231:in `gem'
    from /Users/myface13214/.rvm/gems/ruby-1.9.3-p327/bin/af:18:in `<main>'
    from /Users/myface13214/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `eval'
    from /Users/myface13214/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `<main>'

This is even after installing it. For some reason gem install won't install it. If it helps, I'm running 1.9.3 installed through RVM.

Answer 1

You didn't really show what you were using it with, so I am going to outline some troubleshooting and installation steps that I have used to install this. A clean gemset, the latest rvm, and recording it as I do it to post here.

The first thing you will want to confirm is your rvm environment. I did these two steps:

$: rvm get head
$: rvm use 1.9.3-p327

And then:

$: rvm info

which finally gives me this report:

ruby-1.9.3-p327@CleanProject:

  system:
    uname:       "Linux lazurus 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:32:50 UTC 2012 i686 i686 i386 GNU/Linux"
    system:      "debian/wheezy_sid/i386"
    bash:        "/bin/bash => GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu)"
    zsh:         " => not installed"

  rvm:
    version:      "rvm 1.16.20 (master) by Wayne E. Seguin <[email protected]>, Michal Papis <[email protected]> [https://rvm.io/]"
    updated:      "13 minutes 59 seconds ago"

  ruby:
    interpreter:  "ruby"
    version:      "1.9.3p327"
    date:         "2012-11-10"
    platform:     "i686-linux"
    patchlevel:   "2012-11-10 revision 37606"
    full_version: "ruby 1.9.3p327 (2012-11-10 revision 37606) [i686-linux]"

  homes:
    gem:          "/home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject"
    ruby:         "/home/some_user/.rvm/rubies/ruby-1.9.3-p327"

  binaries:
    ruby:         "/home/some_user/.rvm/rubies/ruby-1.9.3-p327/bin/ruby"
    irb:          "/home/some_user/.rvm/rubies/ruby-1.9.3-p327/bin/irb"
    gem:          "/home/some_user/.rvm/rubies/ruby-1.9.3-p327/bin/gem"
    rake:         "/home/some_user/.rvm/gems/ruby-1.9.3-p327@global/bin/rake"

  environment:
    PATH:         "/home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject/bin:/home/some_user/.rvm/gems/ruby-1.9.3-p327@global/bin:/home/some_user/.rvm/rubies/ruby-1.9.3-p327/bin:/home/some_user/.rvm/bin:/usr/local/heroku/bin:/home/some_user/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/java-6-sun/bin"
    GEM_HOME:     "/home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject"
    GEM_PATH:     "/home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject:/home/some_user/.rvm/gems/ruby-1.9.3-p327@global"
    MY_RUBY_HOME: "/home/some_user/.rvm/rubies/ruby-1.9.3-p327"
    IRBRC:        "/home/some_user/.rvm/rubies/ruby-1.9.3-p327/.irbrc"
    RUBYOPT:      ""
    gemset:       "CleanProject"

I have a clean gemset, no Gemfile so no bundle install. Simply this:

 $: gem install af --no-rdoc --no-ri       
Fetching: json_pure-1.6.7.gem (100%)       
Fetching: rubyzip-0.9.9.gem (100%)         
Fetching: mime-types-1.19.gem (100%)       
Fetching: rest-client-1.6.7.gem (100%)     
Fetching: terminal-table-1.4.5.gem (100%)  
Fetching: interact-0.4.8.gem (100%)        
Fetching: addressable-2.2.8.gem (100%)     
Fetching: uuidtools-2.1.3.gem (100%)       
Fetching: rb-readline-0.4.2.gem (100%)     
Fetching: af-0.3.18.11.gem (100%)          
Successfully installed json_pure-1.6.7     
Successfully installed rubyzip-0.9.9       
Successfully installed mime-types-1.19     
Successfully installed rest-client-1.6.7   
Successfully installed terminal-table-1.4.5
Successfully installed interact-0.4.8      
Successfully installed addressable-2.2.8   
Successfully installed uuidtools-2.1.3     
Successfully installed rb-readline-0.4.2   
Successfully installed af-0.3.18.11        
10 gems installed                          

Then I check for the gems binary, so that I know it installs it.

$: which af
/home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject/bin/af

And when I do an directory listing:

$: ls /home/some_user/.rvm/gems/ruby-1.9.3-p327@CleanProject/bin/
af
restclient

This is where it seems yours breaks...

 $: af
Usage: af [options] command [<args>] [command_options]
Try 'af help [command]' or 'af help options' for more information.

And further, I can run the help option:

$: af help

I get the help screen

Usage: af [options] command [<args>] [command_options]
Try 'af help [command]' or 'af help options' for more information.

Currently available af commands are:

  Getting Started
    target [url]                                 Reports current target or sets a new 

|
|  quite a few lines cut out for brevity's sake
|    

  Help
    help [command]                               Get general help or help on a specific command
    help options                                 Get help on available options

Of course, when I check the folders that are reflected in the rvm info, I see the af binary alongside the others.

Answer 2

Sometimes rvm may not be fully engaged which means your $GEM_PATH environment variable is not set correctly. Typically rvm use 1.9.3 will fix that.

It may be that your rvm install is out of date or needs to be adjusted so that your default Ruby is set correctly.