For some reason Rails is loading an older version of Ruby which all is a little odd (since all other indicators say otherwise).
Here's the version outputs from all the usual commands:
# Ruby Version
# $ ruby -v
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]
# Rails Version
# $ rails -v
Rails 3.2.6
# Gem Console
# $ gem environment
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.23
- RUBY VERSION: 1.9.3 (2012-04-20 patchlevel 194) [x86_64-linux]
- INSTALLATION DIRECTORY: /usr/local/ruby/1.9.3-p194/lib/ruby/gems/1.9.1
- RUBY EXECUTABLE: /usr/local/ruby/1.9.3-p194/bin/ruby
- EXECUTABLE DIRECTORY: /usr/local/ruby/1.9.3-p194/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /usr/local/ruby/1.9.3-p194/lib/ruby/gems/1.9.1
- /home/vagrant/.gem/ruby/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
# IRB
# $ irb
irb(main):001:0> RUBY_VERSION
=> "1.9.3"
# Rails Console
# $ rails console
Loading development environment (Rails 3.2.6)
irb(main):002:0> RUBY_VERSION
=> "1.8.7"
Note that only Rails is reporting the wrong version while all others are reporting 1.9.3.
I installed Ruby using the gem environment listed above, so would have expected it to be operating differently...
Any ideas?
If you are using RVM or rbenv both have a project level dotfile (.rbenv, .rvm) that can play havoc with stuff like this. Check there first.
Related
Note: This question relates to How can I get bundler to use the Ruby version set by chruby and .ruby-version?.
Using chruby I have Ruby 1.8.7 installed on macOS:
$ ruby -v
ruby 1.8.7 (2013-06-27 patchlevel 374) [i686-darwin17.4.0]
Also, I have used gem update --system 1.8.30 to install a specific version of RubyGems which I am hoping is compatible. This would appear to be installed properly:
$ gem --version
1.8.30
However, my RubyGems environment shows the incorrect version of Ruby (2.5.0):
$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.30
- RUBY VERSION: 2.5.0 (2017-12-25 patchlevel 0) [x86_64-darwin17]
- INSTALLATION DIRECTORY: /Users/keithpitty/.gem/ruby/1.8.7
- RUBY EXECUTABLE: /usr/local/opt/ruby/bin/ruby
- EXECUTABLE DIRECTORY: /Users/keithpitty/.gem/ruby/1.8.7/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-17
- GEM PATHS:
- /Users/keithpitty/.gem/ruby/1.8.7
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
How can I fix the RubyGems environment to use the version of Ruby that chruby has set?
My missing step was installing RubyGems 1.6.2 from source. Following advice elsewhere from Dan Cheail, I did the following:
curl -O https://rubygems.org/rubygems/rubygems-1.6.2.tgz
(and then unzipped it)
cd rubygems-1.6.2
chruby ruby-1.8.7-p374
ruby setup.rb
gem update --system 1.8.25
And then my RubyGems environment was fixed:
$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.25
- RUBY VERSION: 1.8.7 (2013-06-27 patchlevel 374) [i686-darwin17.4.0]
- INSTALLATION DIRECTORY: /Users/keithpitty/.gem/ruby/1.8.7
- RUBY EXECUTABLE: /Users/keithpitty/.rubies/ruby-1.8.7-p374/bin/ruby
- EXECUTABLE DIRECTORY: /Users/keithpitty/.gem/ruby/1.8.7/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-darwin-17
- GEM PATHS:
- /Users/keithpitty/.gem/ruby/1.8.7
- /Users/keithpitty/.rubies/ruby-1.8.7-p374/lib/ruby/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
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 just migrated to a new Mac with OS X Lion. For some reson I can't install new Ruby gems anymore. Or rather: I can install them, but not find them.
This is my gem env:
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.6
- RUBY VERSION: 1.8.7 (2010-01-10 patchlevel 249) [universal-darwin11.0]
- 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-11
- GEM PATHS:
- /Library/Ruby/Gems/1.8
- /Users/Jens/.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://rubygems.org/
Running the gem crack in irb works fine:
>> require 'rubygems'
=> false
>> require 'crack'
=> true
But when I try to do the same in my text editor (Textwrangler) I run into this:
custom_require.rb:31: in `gem_original_require': no such file to load -- crack (LoadError)
Any suggestions?
Maybe a pointer in the right direction: I've had problems on Lion with different ruby versions being installed. Problem was that some programs calling ruby (in my case git for a pre-commit hook) had their $PATH variable different; as a result another version of ruby was found first (and that version didn't have the gems installed).
So to debug, try printing out the version of both rubys (rubies?), and the PATH variable (something like print RUBY_VERSION and print ENV["PATH"]; maybe also print ENV["GEM_HOME"]. See if that leads to anything.
FYI: for me the solution in the end was to upgrade from git 1.7.3 to 1.7.7; it wasn't clear to my why things didn't work in 1.7.3 (why the PATH was different), but who cares; it works again :))
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.
On my ubuntu box, irb (ruby) gives a NameError when I try to use the mechanize gem:
$ irb
irb(main):001:0> require 'mechanize'
=> true
irb(main):002:0> Mechanize.new
NameError: uninitialized constant Mechanize
from (irb):2
from :0
gem env shows this:
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.7
- RUBY VERSION: 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
- INSTALLATION DIRECTORY: /usr/lib/ruby/gems/1.8
- RUBY EXECUTABLE: /usr/bin/ruby1.8
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /usr/lib/ruby/gems/1.8
- /var/lib/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- :gempath => ["/var/lib/gems/1.8", "/usr/lib/ruby/gems/1.8"]
- REMOTE SOURCES:
- http://rubygems.org/
gem list shows it's installed:
$ gem list mech
*** LOCAL GEMS ***
mechanize (1.0.0)
it's in both paths in the filesystem:
$ ls -1 /var/lib/gems/1.8/gems/ |grep mech
mechanize-1.0.0
$ ls -1 /usr/lib/ruby/gems/1.8/gems |grep mech
mechanize-1.0.0
RubyGems is up to date:
$ gem update --system
Updating RubyGems
Nothing to update
# gem list rubygems
*** LOCAL GEMS ***
rubygems-update (1.3.7)
I have an up-to-date ruby:
ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
Here's what ubuntu gems packages I have (note that I installed rubygems-update and ran update_rubygems):
# dpkg -l rubygems*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==================-==================-====================================================
ii rubygems 1.3.5-1ubuntu2 package management framework for Ruby libraries/appl
ii rubygems-doc 1.3.5-1ubuntu2 package management framework for Ruby libraries/appl
ii rubygems1.8 1.3.5-1ubuntu2 package management framework for Ruby libraries/appl
try to create the class using
WWW::Mechanize.new