I've installed the development version of Crunchbang, a linux distro based off Debian. I got Ruby and Rubygems installed, but I can't get the gems I've installed to load. Here is a command-line session:
$ ruby -v
ruby 1.9.1p378 (2010-01-10 revision 26273) [i486-linux]
$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.6
- RUBY VERSION: 1.9.1 (2010-01-10 patchlevel 378) [i486-linux]
- INSTALLATION DIRECTORY: /usr/lib/ruby1.9.1/gems/1.9.1
- RUBY EXECUTABLE: /usr/bin/ruby1.9.1
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-linux
- GEM PATHS:
- /usr/lib/ruby1.9.1/gems/1.9.1
- /home/corey/.gem/ruby/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
$ echo $PATH
/home/corey/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/corey/.gem/ruby/1.9.1:/usr/lib/ruby1.9.1/gems/1.9.1
$ gem list -d nokogiri
`*** LOCAL GEMS ***`
nokogiri (1.4.1)
Authors: Aaron Patterson, Mike Dalessio
Rubyforge: http://rubyforge.org/projects/nokogiri
Homepage: http://nokogiri.org
Installed at: /usr/lib/ruby1.9.1/gems/1.9.1
Nokogiri (鋸) is an HTML, XML, SAX, and Reader parser
$ ruby -r rubygems -e "require 'nokogiri'"
-e:1:in `require': no such file to load -- nokogiri (LoadError)
from -e:1:in `'
I've encountered similar problems on Ubuntu before, but they were easy to fix. I can't figure out what's wrong in this particular case, and Google didn't seem to know either. Any help would be greatly appreciated!
By the way... this is my first submission to stackoverflow. I hope this question is relevant. :)
Debian does not load RubyGems by default. You can solve this by adding require 'rubygems' to your code or better still, have RubyGems loaded each time Ruby is run. I also run #! and achieved this by editing my ~/.profile adding export RUBYOPT=rubygems and finally reloading my profile with . ~/.profile.
For more information on this matter see: http://docs.rubygems.org/read/chapter/3
Is nokogiri in any of the directories in GEM PATHS?
I've had problems before with installing rubygems from the Debian repos and then installing in manually. Debian puts all gems in /var/ somewhere in the distribution package.
Related
tl;dr
Pry can't find several of my installed gems because the gems found by Gem::Specification are different than the gems found by gem list --local. The ruby versions are the same, and the path to the found and not-found gems seems to be the same.
I'm thinking that I must have some mix up with paths or ruby versions, but I can't find the culprit. Any ideas of how to untangle this?
Details
I'm running ruby 2.2.0 using rvm on OS X Yosemite, and I'm having an issue getting pry to find several of my installed gems (in particular, pry-doc).
Here are my versions:
lee$ ruby -v
ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-darwin14]
lee$ pry -v
Pry version 0.10.1 on Ruby 2.2.0
lee$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 2.4.6
- RUBY VERSION: 2.2.0 (2014-12-25 patchlevel 0) [x86_64-darwin14]
- INSTALLATION DIRECTORY: /usr/local/rvm/gems/ruby-2.2.0
- RUBY EXECUTABLE: /usr/local/rvm/rubies/ruby-2.2.0/bin/ruby
- EXECUTABLE DIRECTORY: /usr/local/rvm/gems/ruby-2.2.0/bin
- SPEC CACHE DIRECTORY: /Users/lee/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /etc
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-14
- GEM PATHS:
- /usr/local/rvm/gems/ruby-2.2.0
- /usr/local/rvm/gems/ruby-2.2.0#global
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- "gem" => "--omg"
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /usr/local/rvm/gems/ruby-2.2.0/bin
- /usr/local/rvm/gems/ruby-2.2.0#global/bin
- /usr/local/rvm/rubies/ruby-2.2.0/bin
- /usr/local/rvm/bin
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /usr/local/git/bin
- /opt/sm/bin
- /opt/sm/pkg/active/bin
- /opt/sm/pkg/active/sbin
- /opt/sm/bin
- /opt/sm/pkg/active/bin
- /opt/sm/pkg/active/sbin
Listing gems via the command line returns what I expect:
lee$ gem list --local | grep 'pry'
pry (0.10.1)
pry-doc (0.8.0)
pry-git (0.2.3)
pry-nav (0.2.4)
pry-rails (0.3.4)
And the paths for both pry and bash seem to be the same
lee$ gem which pry
/usr/local/rvm/gems/ruby-2.2.0/gems/pry-0.10.1/lib/pry.rb
lee$ gem which pry-doc
/usr/local/rvm/gems/ruby-2.2.0/gems/pry-doc-0.8.0/lib/pry-doc.rb
pry(main)> $ pry
From: /usr/local/rvm/gems/ruby-2.2.0/gems/pry-0.10.1/lib/pry/core_extensions.rb # line 41:
...
However, in pry, the gems available to be installed are controlled by Gem::Specification from the rubygems library. Running the following:
# I know this method is a mess, but it does the job
def prys
Gem::Specification.sort_by{ |g| [g.name.downcase, g.version] }
.select { |g| g.name =~ /pry/ }
.group_by{ |g| g.name }
.map { |name, versions|
"#{name} (#{versions.map { |v| v.version.to_s }.join(', ') })"
}
end
prys
returns:
=> ["pry (0.10.1)", "pry-rails (0.3.4)"]
I've tried uninstalling and reinstalling as well as hunting around for another copy of the found gems, but no luck. I can't figure out the pattern for what's being returned either.
Any ideas of what to try next?
I couldn't figure it out, so I figured that there was some issue with how my gems were being saved. I tried rvm remove 2.2.0 --gems and then reinstalling, and that solved the issue.
I'm still not sure what precisely was the problem, so if anyone has next-level troubleshooting steps, that's probably still be useful to share.
I had the same problem with pry-rails and ruby 2.3.0, rails 4.2.6. I use rvm to remove ruby and install it again, and everything works.
However, come to think of it, I guess that the real problem is spring is running somewhere with an old gemset. After you install the gem using bundler, you should type spring stop, then run rails c again. It should run ok.
I recently installed Ruby 2.0.0 on OS X 10.8.3 by compiling from source code. I checked the version with
$ ruby --version
ruby 2.0.0p195 (2013-05-14 revision 40734) [x86_64-darwin12.3.0]
And I checked my gem version with
$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 2.0.3
- RUBY VERSION: 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin12.0]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- universal-darwin-12
- GEM PATHS:
- /Library/Ruby/Gems/1.8
- /Users/ehartsuyker/.gem/ruby/1.8
- /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- :benchmark => false
- :sources => ["http://rubygems.org/", "http://gemcutter.org"]
- REMOTE SOURCES:
- http://rubygems.org/
- http://gemcutter.org
I noticed that the reported version of Ruby here does not match the version I installed. I don't know if this matters or not.
I have a simple piece of code called encrypy.rb that I'm running. After installing the 'rsa' gem with gem install rsa.
require 'rubygems'
require 'rsa'
key = RSA::KeyPair.generate(128)
ciphertext = key.encrypt("message")
puts(ciphertext)
When I run it, it gives an error saying it can't find the gem.
$ ruby encrypt.rb -Idirectory '/Library/Ruby/Gems/1.8'
/usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- rsa (LoadError)
from /usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from encrypt.rb:2:in `<main>'
So the question is, why isn't Ruby finding the gem despite seeming to know where it is? And how can I fix it?
Ruby 1.8.7 is shipped with OS X. It seems that gem is seeing that version instead of your manually installed 2.0.0. As others already suggested, using RVM or rbenv (which one depends on personal preference) makes handling different ruby environments much easier. You can find those tools and descriptions for them in the following places:
RVM: https://rvm.io/
rbenv: https://github.com/sstephenson/rbenv
I am a beginner with Ruby development, so apologies this is a face palm question.
On mac OSX I installed ruby 1.9.3, and then installed a gem via command 'gem install selenium-webdriver', I then installed eclipse as IDE.
I then wrote a simple class requiring the 'selenium-webdriver' gem.
class Cheese
require 'rubygems'
require 'selenium-webdriver'
... rest of code class.
I can run cheese.rb without issue from the command line using irb or ruby (i.e. ruby ./path to file/cheese.rb)', but when running the script via the eclipse GUI i get an error:
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- selenium-webdriver (LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /Users/bryan/Documents/workspace/New Se Project/Cheese.rb:3
This would indicate a config issue with Eclipse. Note the installed default ruby version is 1.9.3 from rvm - list, but Eclipse is still 'bound' to 1.8. Googling indicates this is probably a PATH issue, but i'm not familiar with environment variables on Mac OSx.
*How can i reconfigure Eclipse (or Aptana) to 'see' the installed gems? *
Further info:
Bryans-MacBook-Air:Library bryan$ which ruby
/Users/bryan/.rvm/rubies/ruby-1.9.3-p194/bin/ruby
Bryans-MacBook-Air:Library bryan$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.24
- RUBY VERSION: 1.9.3 (2012-04-20 patchlevel 194) [x86_64-darwin11.4.0]
- INSTALLATION DIRECTORY: /Users/bryan/.rvm/gems/ruby-1.9.3-p194
- RUBY EXECUTABLE: /Users/bryan/.rvm/rubies/ruby-1.9.3-p194/bin/ruby
- EXECUTABLE DIRECTORY: /Users/bryan/.rvm/gems/ruby-1.9.3-p194/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-11
- GEM PATHS:
- /Users/bryan/.rvm/gems/ruby-1.9.3-p194
- /Users/bryan/.rvm/gems/ruby-1.9.3-p194#global
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
Bryans-MacBook-Air:Library bryan$ echo $PATH
/Users/bryan/.rvm/gems/ruby-1.9.3-p194/bin:/Users/bryan/.rvm/gems/ruby-1.9.3-p194#global/bin:/Users/bryan/.rvm/rubies/ruby-1.9.3-p194/bin:/Users/bryan/.rvm/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin
I was having the same problem. I first tried this tutorial: http://net.tutsplus.com/tutorials/ruby/how-to-install-ruby-on-a-mac/
This did not help.
Then I saw this entry in superuser: https://superuser.com/questions/154292/ruby-rubygems-why-do-i-always-get-error-messages-when-trying-to-install-gems and running gem install using sudo helped me.
Win32Console did install:
Fetching: win32console-1.3.0-x86-mingw32.gem (100%)
Successfully installed win32console-1.3.0-x86-mingw32
1 gem installed
Installing ri documentation for win32console-1.3.0-x86-mingw32...
Installing RDoc documentation for win32console-1.3.0-x86-mingw32...
but it doesn't want to work with require. I see this everywhere:
require 'Win32/Console/ANSI'
But everytime I try it a LoadError is raised.
Is there something I'm missing here? Do I need to configure it somehow?
P.S.:
The error message:
LoadError: no such file to load -- Win32/Console/ANSI
from path/custom_require.rb:36:in `require'
from path/custom_require.rb:36:in `require'
from (irb):23
from path/irb:12:in `<main>'
gem list win32console gives:
*** LOCAL GEMS ***
win32console (1.3.0 x86-mingw32)
gem environment gives:
RubyGems Environment:
- RUBYGEMS VERSION: 1.7.2
- RUBY VERSION: 1.9.2 (2011-07-09 patchlevel 290) [i386-mingw32]
- INSTALLATION DIRECTORY: rubypath/lib/ruby/gems/1.9.1
- RUBY EXECUTABLE: rubypath/bin/ruby.exe
- EXECUTABLE DIRECTORY: rubypath/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-mingw32
- GEM PATHS:
- rubypath/lib/ruby/gems/1.9.1
- userpath/.gem/ruby/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
(paths truncated because they are long)
Finally: ruby -v:
ruby 1.9.2p290 (2011-07-09) [i386-mingw32]
Hey I was having this same issue. I am also the one that put the bounty up. I finally got passed this error. this is what i did.
As you correctly did, I installed the gem.
gem install win32console
then I went into my gemfile and also added this gem to the bottom.
Seems to work! How do I get my bounty back!!
According to example from here: https://github.com/luislavena/win32console you should:
require 'rubygems'
require 'win32console'
include Win32::Console::ANSI
include Term::ANSIColor
In the same README you can read that
Win32::Console has been deprecated in favor of an external tool named ANSICON:
http://blog.mmediasys.com/2010/11/24/we-all-love-colors/
https://github.com/adoxa/ansicon
ANSICON is universal tool and you use it in ruby with gem: https://github.com/flori/term-ansicolor
See this thread: http://www.ruby-forum.com/topic/133808
Hi everybody,
I figured out, what the problem was:
Just renamed the path in the gems dir:
win32console-1.0.8-x86-mswin32
to
win32console-1.0.8-i386-mswin32
then it works for me.
I was having some trouble running some Ruby scripts. While trying to get these scripts to run I tried lots of different things as well as updating rubygems as I thought this may be the problem. Since then I can't get any Ruby scripts to run.
I think that if I can revert rubygems back to it's original version I may be able to run Ruby scripts again, but I don't know how.
$ gem environment
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.5
- RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- universal-darwin-10
- GEM PATHS:
- /Library/Ruby/Gems/1.8
- /Users/ryan/.gem/ruby/1.8
- /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://gems.rubyforge.org/
$ ruby -v
ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-darwin10]
$ which -a ruby
/opt/local/bin/ruby
/opt/local/bin/ruby
/usr/bin/ruby
/usr/local/bin/ruby
$ which -a gem
/usr/bin/gem
/usr/local/bin/gem
Thank you for any help in advance.
Ryan
$ ruby spidr_start_at.rb
spidr_start_at.rb:1:in `require': no such file to load -- rubygems (LoadError)
from spidr_start_at.rb:1
$ cat spidr_start_at.rb
require 'rubygems'
require 'uri'
require 'spidr'
url = 'http://www.ethicalhack3r.co.uk'
puts "Spidr.start_at()"
puts
Spidr.start_at(url, :depth => 1) do |spider|
spider.every_page do |page|
puts page.url.to_s
end
end
It seems that you have multiple versions of ruby(and gem) installed. It is advised to use rvm when maintaining multiple ruby versions. Or clean up your wrong/old/unneeded installations.
For downgrading Rubygems, you can do the following:
sudo gem update --system VERSION
You obviously have to put a real version there.