Rake task can't find installed gems

Rails
1

I’m running a rake task and it complains there are “Missing gems” even
though they are indeed installed. However from further inspection, it
appears it is not looking in my GEM PATH (/usr/local/lib/ruby/1.8) but
instead is looking in

/usr/lib/ruby/gems/1.8.

my gem env:
RubyGems Environment:

  • RUBYGEMS VERSION: 1.3.7
  • RUBY VERSION: 1.8.7 (2010-04-19 patchlevel 253) [x86_64-linux]
  • INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/1.8
  • RUBY EXECUTABLE: /usr/local/bin/ruby
  • EXECUTABLE DIRECTORY: /usr/local/bin
  • RUBYGEMS PLATFORMS:
    • ruby
    • x86_64-linux
  • GEM PATHS:
    • /usr/local/lib/ruby/gems/1.8
    • /home/allen/.gem/ruby/1.8
  • GEM CONFIGURATION:
  • REMOTE SOURCES: