rake fails until you delete the original .gemspec file

gistfile1.txt

C:\installs\trunk3_installed>cd bin

C:\installs\trunk3_installed\bin>rake -T
C:/installs/trunk3_installed/lib/ruby/1.9.1/rubygems.rb:340:in `bin_path': can't find executable rake for rake-0.8.7 (Gem::Exception)
        from C:/installs/trunk3_installed/bin/rake:19:in `<main>'

C:\installs\trunk3_installed\bin>cd ..

C:\installs\trunk3_installed>cat ./lib/ruby/gems/1.9.1/specifications/rake.gemspec
Gem::Specification.new do |s|
  s.name = "rake"
  s.version = "0.8.7"
  s.summary = "This rake is bundled with Ruby"
end

C:\installs\trunk3_installed>rm  ./lib/ruby/gems/1.9.1/specifications/rake.gemspec

C:\installs\trunk3_installed>cd bin

C:\installs\trunk3_installed\bin>rake -T
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb, Rakefile.rb)
C:/installs/trunk3_installed/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2377:in `raw_load_rakefile'
(See full trace by running task with --trace)

Thanks! Fixed spork gem installation for me too.