Ruby on Windows7 - could not find gem

Question

I'm setting up a ruby Apache Buildr on a fresh Windows 7 machine. I've installed Ruby, the DevKit and installed buildr via

    gem install buildr

wich all ran perfect. Until I tried to execute buildr, then I get an error.

    buildr compile

    C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find buildr (>= 0) amongst [atoulme-Antwrap-0.7.1, builder-2.1.2, buildr-1.4.5-x86-mswin32, buildr-as3-0.2.12, diff-lcs-1.1.2,highline-1.5.1, hoe-2.3.3, json_pure-1.4.3, minitar-0.5.3, minitest-1.6.0, net-sftp-2.0.4, net-ssh-2.0.23, rake-0.8.7, rdoc-2.5.8, rjb-1.3.2-x86-mswin32-60, rspec-2.1.0, rspec-core-2.1.0,rspec-expectations-2.1.0, rspec-mocks-2.1.0, rubyforge-2.0.3, rubygems-update-1.8.4, rubyzip-0.9.4, xml-simple-1.0.12] (Gem::LoadError)
    from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:1182:in `gem'
    from C:/Ruby192/bin/buildr:18:in `<main>'

When I list all the gems with

   gem list buildr

Everything seems to match up, and this error makes no sense at all. enter image description here

Any ideas? Help would be great, I'm getting desperate now. :)

I've got exactly the same problem; running with admin privileges doesn't change anything. — Will, Jun 07 '11 at 13:15
Did you resolve this issue? I'm having the same problems with Ruby187 — IttayD, Jul 05 '11 at 06:09

score 2 · Accepted Answer · answered Oct 09 '12 at 18:25

2

Had the same problem. I have Windows 7 x64 so installed again with gem install buildr --platform mswin64 and it worked.

answered Oct 09 '12 at 18:25

Edgar Pérez

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score 1 · Answer 2 · answered May 31 '11 at 21:30

I had a similar problem in the past.

My problem was the kind of installation. I installed ruby as admin (target was c:\program files). Everything worked fine - until I installed a gem as normal user (not admin).

What happened on windows side? I have no authorization for c:\program files, the gem was installed in another directory (No, there was no error, Windows just decided to use another directory. This bug/feature is called 'Virtual Store').

In the end Ruby had problems to find the files.

My solution: Install ruby as normal user outside c:\program files.

Maybe it is enough, when you install your gems as admin (but attention: if you have once files in your Virtual store, they are read always first.).

Thanks for your reply! I installed Ruby in the installation directory C:\Ruby192 as me (not as admin, but as a user with admin rights) So I don't think this is the issue. — Joris Timmerman, May 31 '11 at 22:44

score 1 · Answer 3 · answered Jun 10 '11 at 14:56

1

Installed Ruby 1.8.7 instead and it works now.

answered Jun 10 '11 at 14:56

Will

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Ruby on Windows7 - could not find gem

3 Answers3

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