LoadError: no such file to load

[Peter Hug]

This happens on a i486 Ubuntu 7.04 machine. If I do:

gem list --local

I get a list of installed gems. However, if I then try to load any of
these gems like for example the (json gem) as follows:

require 'json'

I get a LoadError: no such file to load. I have worked out where for
example the json gem resides and then I navigated to that directory and
used irb to test if require 'json' would work from there and it seemed
fine (returned true).

It appears to me that ruby doesn't know the path to gems, how can I fix
this?

Pete

 

[Axel Etzold]

-------- Original-Nachricht --------

Datum: Thu, 8 Nov 2007 16:33:25 +0900
Von: Peter Hug <[email protected]>
An: (e-mail address removed)
Betreff: LoadError: no such file to load

This happens on a i486 Ubuntu 7.04 machine. If I do:

gem list --local

I get a list of installed gems. However, if I then try to load any of
these gems like for example the (json gem) as follows:

require 'json'

I get a LoadError: no such file to load. I have worked out where for
example the json gem resides and then I navigated to that directory and
used irb to test if require 'json' would work from there and it seemed
fine (returned true).

It appears to me that ruby doesn't know the path to gems, how can I fix
this?

Pete

Dear Pete,

try

require "rubygems"
require "json"

This should work.

Best regards,

Axel

 

[Peter Hug]

require "rubygems"
require "json"

Spot on Axel, that fixed it! Thanks heaps.

What puzzles me though is that the same setup works fine under Windows
(i.e. my ruby scripts can use any installed gems without having to load
rubygems first.

Any idea why that would be?

Pete

 

[Alex LeDonne]

Spot on Axel, that fixed it! Thanks heaps.

What puzzles me though is that the same setup works fine under Windows
(i.e. my ruby scripts can use any installed gems without having to load
rubygems first.

Any idea why that would be?


Pete

The Ruby One-Click Installer sets an environment variable calld
RUBYOPT to -rubygems, which causes ruby to automatically require
'rubygems' for you.

You could set RUBYOPT on your Ubuntu box, if you like.

-A