undefined method `install_gem_spec_stubs' for #<Rails::Initializer:

At the beginning I thought this problem would have a simple/quick solution with a bit of googleing.

I am trying to install/run Redmine 0.7.3

Here is the problem:

cd /opt/redmine-0.7.3/ rootsoyo933 /opt/redmine-0.7.3]# ruby script/server ./script/../config/../vendor/rails/railties/lib/initializer.rb:49:in `send': undefined method `install_gem_spec_stubs' for #<Rails::Initializer:0x2b955ea30c68> (NoMethodError)         from ./script/../config/../vendor/rails/railties/lib/ initializer.rb:49:in `run'         from ./script/../config/boot.rb:46:in `load_initializer'         from ./script/../config/boot.rb:38:in `run'         from ./script/../config/boot.rb:11:in `boot!'         from ./script/../config/boot.rb:109         from script/server:2:in `require'         from script/server:2

I am posting to this group because this: from ./script/../config/../vendor/rails/railties/lib/initializer.rb: 49:in `run' might imply this is a rails issue?:

Here are specifics about the environment:

rootsoyo933 ~]# rake -V rake, version 0.8.1 rootsoyo933 ~]# ruby -v ruby 1.8.6 (2008-08-08 patchlevel 286) [x86_64-linux] rootsoyo933 ~]# rails -v Rails 2.1.1 rootsoyo933 ~]# uname -a Linux soyo933.linuxhome.org 2.6.18-92.1.10.el5 #1 SMP Tue Aug 5 07:42:41 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux

gem list

*** LOCAL GEMS ***

actionmailer (2.1.1, 2.1.0) actionpack (2.1.1, 2.1.0) activerecord (2.1.1, 2.1.0) activeresource (2.1.1, 2.1.0) activesupport (2.1.1, 2.1.0) rails (2.1.1) rake (0.8.1) rubygems-update (1.2.0)

TIA for any pointers that will lead me to the solution.