# A problem 'require'ing **URL:** \ **Category:** Ruby\ **Created:** [August 8, 2007, 11:57pm UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596 "2007-08-08T23:57:30Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 8, 2007, 11:57pm UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/1 "2007-08-08T23:57:30Z")
successfully used gem to install the classifier library but I get this: irb(main):001:0\> require ‘classifier’ LoadError: no such file to load – classifier from (irb):1:in `require' from (irb):1:in`Kernel#binding’ maybe the configurations for irb/ruby (doesn’t work in 1.8 or 1.9) aren’t aligned with where gem puts the libraries? thanks ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 12:01am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/2 "2007-08-09T00:01:50Z")
Simon S. wrote: > successfully used gem to install the classifier library but I get this: > > irb(main):001:0\> require ‘classifier’ > LoadError: no such file to load – classifier > from (irb):1:in `require' from (irb):1:in`Kernel#binding’ > > maybe the configurations for irb/ruby (doesn’t work in 1.8 or 1.9) > aren’t aligned with where gem puts the libraries? thanks require ‘rubygems’ require ‘classifier’ ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 12:11am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/3 "2007-08-09T00:11:32Z")
On Aug 8, 4:56 pm, “Simon S.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > successfully used gem to install the classifier library but I get this: > > irb(main):001:0\> require ‘classifier’ > LoadError: no such file to load – classifier > from (irb):1:in `require' from (irb):1:in `Kernel#binding’ > > maybe the configurations for irb/ruby (doesn’t work in 1.8 or 1.9) > aren’t aligned with where gem puts the libraries? thanks Did you require rubygems? > > require ‘classifier’ > > LoadError: no such file to load – classifier > > from (irb):1:in `require’ > > from (irb):1 > > require ‘rubygems’ > > =\> true > > require ‘classifier’ > > c:0:Warning: require\_gem is obsolete. Use gem instead. > > Notice: for 10x faster LSI support, please install > > [http://rb-gsl.rubyforge.org/](http://rb-gsl.rubyforge.org/) > > =\> true Gordon ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 12:16am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/4 "2007-08-09T00:16:34Z")
I’ve just noticed that that’s probably the problem. but unfortunately, irb(main):001:0\> require ‘rubygems’ LoadError: no such file to load – rubygems ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 3:13am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/5 "2007-08-09T03:13:45Z")
an update: I CAN require ‘rubygems’ if I start irb from the /usr/lib/ruby/1.8 directory, which is where I found rubygems.rb … there’s also this: irb(main):003:0\> $: =\> ["/usr/local/lib/site\_ruby/1.9", “/usr/local/lib/site\_ruby/1.9/i486-linux”, “/usr/local/lib/site\_ruby/1.9/i386-linux”, “/usr/local/lib/site\_ruby”, “/usr/lib/ruby/1.9”, “/usr/lib/ruby/1.9/i486-linux”, “/usr/lib/ruby/1.9/i386-linux”, “.”] the “.” being the only reason it found rubygems this time. so, that being the problem, I’m having a bit of a problem finding how can I change/add paths for irb/ruby/wherever that’s configured. thanks! ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 8:05am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/6 "2007-08-09T08:05:08Z")
could I also maybe stick to 1.8 ? I don’t know if I really need 1.9 for anything and it’s just mucking up some stuff. maybe it’s not useful to have both installed, and maybe it’s downright ill-advised? ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 4:13am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/7 "2007-08-09T04:13:52Z")
On Aug 8, 2007, at 18:13, Simon S. wrote: > the “.” being the only reason it found rubygems this time. so, that > being the problem, I’m having a bit of a problem finding how can I > change/add paths for irb/ruby/wherever that’s configured. You need to install rubygems for ruby 1.9 as well as 1.8. ---
**Author:** ![simonsaid](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5e925/32.png) [@simonsaid](https://www.ruby-forum.com/u/simonsaid)\ **Post date:** [August 9, 2007, 9:43am UTC](https://www.ruby-forum.com/t/a-problem-requireing/111596/8 "2007-08-09T09:43:21Z")
On Aug 8, 2007, at 23:04, Simon S. wrote: > > > “/usr/local/lib/site\_ruby/1.9/i386-linux”, "/usr/local/lib/ > > > could I also maybe stick to 1.8 ? I don’t know if I really need 1.9 > > > for anything and it’s just mucking up some stuff. maybe it’s not > > > useful to have both installed, and maybe it’s downright ill-advised? I have both ruby 1.8.x and ruby 1.9.x installed, but with separate binaries. To do that, use the --program-suffix option to configure: $ cd /path/to/ruby/source $ ./configure --program-suffix=19 $ make && sudo make install To run ruby 1.9.x use “ruby19”. My ruby 1.8.x is installed as “ruby186” with a symlink to “ruby” PS: You can use the GEM\_PATH environment variable to make ruby 1.9.x pick up ruby 1.8.x gems, but you still need to have RubyGems installed twice (not entirely true, but its the easiest way to go). PPS: By the end of October, RubyGems will come included with ruby 1.9.x.