gem install iCuke

[David]

Hi, i am trying to get this iCuke to install on my machine. I have RVM
and use many ruby versions, but mostly 1.9.1 and 1.9.2

when i execute 'gem install iCuke' on the console i get a long spew of
success make build kinda ooutput and then the last part which seems to
keep my from having an 'icuke .' command available.

here is the end of the output:
==================================================================
GenerateDSYMFile build/Release/waxsim.dSYM ../../ext/bin/waxsim
cd /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/
WaxSim
/Developer/usr/bin/dsymutil /Users/david/.rvm/gems/ruby-1.9.1-p378/
gems/iCuke-0.6.2/ext/WaxSim/../../ext/bin/waxsim -o /Users/david/.rvm/
gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/WaxSim/build/Release/
waxsim.dSYM

Strip ../../ext/bin/waxsim
cd /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/
WaxSim
/Developer/usr/bin/strip /Users/david/.rvm/gems/ruby-1.9.1-p378/
gems/iCuke-0.6.2/ext/WaxSim/../../ext/bin/waxsim

SetOwnerAndGroup "david:staff" ../../ext/bin/waxsim
cd /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/
WaxSim
/usr/sbin/chown -RH david:staff /Users/david/.rvm/gems/ruby-1.9.1-
p378/gems/iCuke-0.6.2/ext/WaxSim/../../ext/bin/waxsim

SetMode u+w,go-w,a+rX ../../ext/bin/waxsim
cd /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/
WaxSim
/bin/chmod -RH u+w,go-w,a+rX /Users/david/.rvm/gems/ruby-1.9.1-
p378/gems/iCuke-0.6.2/ext/WaxSim/../../ext/bin/waxsim

** BUILD SUCCEEDED **

cd iCuke && rake
(in /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/iCuke)
rake aborted!
undefined method `grep' for #<String:0x0000010083d900>
/Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/iCuke/
Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)
rake aborted!
Command failed with status (1): [cd iCuke && rake...]
/Users/david/.rvm/gems/ruby-1.9.1-p378/gems/iCuke-0.6.2/ext/Rakefile:
3:in `block in <top (required)>'
(See full trace by running task with --trace)


Gem files will remain installed in /Users/david/.rvm/gems/ruby-1.9.1-
p378/gems/iCuke-0.6.2 for inspection.
Results logged to /Users/david/.rvm/gems/ruby-1.9.1-p378/gems/
iCuke-0.6.2/ext/gem_make.out
rake aborted!
Command failed with status (1): [ruby -S gem install ./pkg/
iCuke-0.6.2.gem...]

(See full trace by running task with --trace)