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comp.lang.ruby

Rails didn't install correctly

Steve Litt

12/28/2005 3:25:00 PM

Hi all,

I already sent this to the Rails list, but I figure someone here might know
how to troubleshoot this.

Apparently rails didn't install correctly on my Mandrake 10.0 system.
=================================
[slitt@mydesk work]$ rails demo
/usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:204:in `report_activate_error':
Could not find RubyGem rails (> 0) (Gem::LoadError)
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:141:in `activate'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:37:in
`require_gem_with_options'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:31:in `require_gem'
        from /usr/bin/rails:17
[slitt@mydesk work]$
=================================

What is "RubyGem rails (> 0)"?

I installed rails with this command as root:

gem install rails --include-dependencies

It errored out (can't remember what it didn't find) so I ran it again and it
said it installed successfully.

My Mandrake 10.0 came with Ruby 1.8.1 which is insufficient for rails, so I
installed ruby 1.8.4 in /usr/local/bin, and then renamed the ruby in /usr/bin
to ruby.1.8.1, and then set up a symlink from /usr/bin/ruby
to /usr/local/bin/ruby. At that point, running Ruby brought up 1.8.4.

I have no idea what the error message meant by "RubyGem rails (> 0)". Can
anyone give me some hints on how to troubleshoot this?

Thanks

SteveT

Steve Litt
http://www.troublesh...
slitt@troubleshooters.com
2 Answers

Jon Baer

12/28/2005 6:01:00 PM

0

If I can remember correctly I had to set env variable RUBY_LIB to it's
corresponding path ... /usr/local/lib/ruby/site_ruby/1.8/ in order to
get gems and rails to work ... may want to try that.

Steve Litt

12/28/2005 7:03:00 PM

0

Hi all,

What I did was reinstalled, but this time without the --include-dependencies.

gem install rails

This meant that for each dependency, I had to say yes. The install appeared to
go through cleanly. I then did rails demo, and it did the right thing, and
after this:

cd /home/slitt/work/demo
ruby script/server

I was able to pull up a rails generated page on http://localhost:3000.

I have NO IDEA why installing without the --include-dependencies would have
made the problem go away, or even whether the thing that fixed it was just
doing one more install of any kind. What I do know is I found out about
running without --include-dependencies after google searching the error
message, and that email thread suggested just gem install rails.

If anyone else asks about a "Could not find RubyGem rails" error, please tell
them to try not using --include-dependencies, and please tell me what
happened, as I'd like to find the true root cause of this problem.

Thanks

SteveT

On Wednesday 28 December 2005 10:24 am, Steve Litt wrote:
> Hi all,
>
> I already sent this to the Rails list, but I figure someone here might know
> how to troubleshoot this.
>
> Apparently rails didn't install correctly on my Mandrake 10.0 system.
> =================================
> [slitt@mydesk work]$ rails demo
> /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:204:in
> `report_activate_error': Could not find RubyGem rails (> 0)
> (Gem::LoadError)
>         from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:141:in
> `activate' from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:37:in
> `require_gem_with_options'
>         from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:31:in
> `require_gem' from /usr/bin/rails:17
> [slitt@mydesk work]$
> =================================
>
> What is "RubyGem rails (> 0)"?
>
> I installed rails with this command as root:
>
> gem install rails --include-dependencies
>
> It errored out (can't remember what it didn't find) so I ran it again and
> it said it installed successfully.
>
> My Mandrake 10.0 came with Ruby 1.8.1 which is insufficient for rails, so I
> installed ruby 1.8.4 in /usr/local/bin, and then renamed the ruby in
> /usr/bin to ruby.1.8.1, and then set up a symlink from /usr/bin/ruby
> to /usr/local/bin/ruby. At that point, running Ruby brought up 1.8.4.
>
> I have no idea what the error message meant by "RubyGem rails (> 0)". Can
> anyone give me some hints on how to troubleshoot this?
>
> Thanks
>
> SteveT
>
> Steve Litt
> http://www.troublesh...
> slitt@troubleshooters.com