'no such file to load -- net/ssh' from rails Controller on Ubuntu

Question

I have a very simple controller:

require 'net/ssh'

class MyController < ApplicationController
    def foo
        render :text => 'bar'
    end
end

But when I request http://server:3000/my/foo I get:

MissingSourceFile in MyController#foo 
no such file to load -- net/ssh

The gem is installed

> gem list net-ssh

*** LOCAL GEMS ***
net-ssh (2.0.11)

Also, I tried require 'net/ssh' in IRB, and it works.

MyController works fine on Windows, but fail on Ubuntu.

What can be wrong?

This error occurs on a fresh install of Mac OS Leopard - I have had the exact same issue trying to use the default net-sftp. — Justicle
– Justicle, Commented Oct 27, 2009 at 5:39

Hamish Downer · Accepted Answer · 2009-05-27 14:27:28Z

3

In a project I am working on we have used the config/environment.rb file to hold the gem require stuff. So

Rails::Initializer.run do |config|
  # ...
  config.gem 'net-ssh'
  config.gem 'daemons'
  config.gem 'slave'
  config.gem 'vpim'
  config.gem 'json'
  # ...
end

I think you will require 'net-ssh' rather than 'net/ssh'. However we did run into a problem where have a hyphen in the name of the gem led to failures. Then we had to do

  config.gem 'Ruby-IRC', :lib => 'IRC'

so that version maybe required for you. So that would be

  config.gem 'net-ssh', :lib => 'net/ssh'

answered May 27, 2009 at 14:27

Hamish Downer

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Comments

Bohdan · Accepted Answer · 2011-08-10 08:10:12Z

2

in case of rails 3.0 this solution if OK. add this in the yourapp/Gemfile,

gem 'net-ssh

edited Aug 10, 2011 at 8:10

Bohdan

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answered Aug 9, 2011 at 8:07

yeer

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Comments

srboisvert · Accepted Answer · 2009-05-27 14:06:41Z

1

This may help:

Rails Gem Dependencies and Plugin Errors

This is also worth watching:

Railscasts: Gem Dependencies

answered May 27, 2009 at 14:06

srboisvert

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1 Comment

alex2k8 Over a year ago

Thank you! I added [config.gem 'net-ssh', :lib => "net/ssh"] into environment.rb and executed [rake gems:install]. Now it works.

raiden · Accepted Answer · 2009-09-07 21:49:11Z

1

In my case, since it's a stand alone ruby app, I only needed to require rubygems.

answered Sep 7, 2009 at 21:49

raiden

Comments

Oinak · Accepted Answer · 2009-05-27 18:05:14Z

0

You can also use Dr Nic's ''gemsonrails'' and load vendored gems as plugins, check: http://gemsonrails.rubyforge.org

answered May 27, 2009 at 18:05

Oinak

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alex2k8 · Accepted Answer · 2009-05-27 21:00:20Z

0

I think, the original problem was that I used normal user instead of root:

$ gem install net-ssh
  WARNING:  Installing to ~/.gem since /usr/lib/ruby/gems/1.8 and
            /usr/bin aren't both writable.
  WARNING:  You don't have /home/alex/.gem/ruby/1.8/bin in your PATH,
            gem executables will not run.

So, I guess, rails could not find this gem.

answered May 27, 2009 at 21:00

alex2k8

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