Problem with rake gems:install

Hi list.

I've added the following line to my `config/environment.rb` file, within
the `Initializer`:

    config.gem 'mislav-will_paginate', :version => '2.3.11', :lib =>
'will_paginate', :source => ''

When I then run the command `sudo rake gems:install`, I get the
following output:

    tkn@tkn-desktop-ubuntu ~/work/trunk $ sudo rake gems:install
    (in /home/tkn/work/trunk)
    Missing these required gems:
      mislav-will_paginate = 2.3.11

    You're running:
      ruby at /usr/local/bin/ruby
      rubygems 1.3.1 at /home/tkn/.gem/ruby/1.8,

    Run `rake gems:install` to install the missing gems.

What is going on here?

What version of rails are you running?

--Matt Jones

More info on the matter here (And a hackety workaround):

You shouldn't be seeing this problem with 2.3.2 - I just tried it in a
fresh Rails app using the 2.3.2 gem. Something weird's going on in
your version, as the install task sets $gems_rake_task which *should*
prevent the display of the error message you're seeing.

Do you happen to have an RC version frozen in vendor/rails? That's my
next guess...

--Matt Jones

I have exactly the same problem with Rails 2.3.2. Since it is an open
source project, you can easily grab it from here and verify for
yourself the problem:

Ari Maniatis

Ari: your problem is in lib/tasks/localization.rake. You require
config/environment, which loads the initializer and causes the error.
The gems tasks never even get a chance to run.

Troels - I'd recommend that you look for the same kind of thing in
your Rakefiles.

--Matt Jones

Matt: thank you so much for finding that. I have removed it and the
problem goes away as you say. Can I recommend some improvements to
Rails to help others in this predicament:

* rake gems:install should not try to load all the rake tasks since it
has a very specific job to do and should not be sidetracked by loading
everything it comes across on the class path

* better error reporting which detects this condition and reports
where the problem might lie

Thank you again for your help.

Ari Maniatis

FYI, I have created a plugin, that moves gem-dependencies into a
separate file (`config/gemconf.rb`) and then makes `script/install_gems`
use this file for finding dependencies. This makes the install script
completely independent of rake and any rake tasks.

You can install it to you existing Rails projects, using:

    ./script/plugin install

Hope this helps someone.