[NTG-context] textools --fixtexmftrees : parse error !

Hi, being a dumb Mac-user I ran into problems using "textools --fixtexmftrees": [powerbook:scripts/context/ruby] himmelblau% ruby /usr/local/teTeX/share/texmf.local/scripts/context/ruby/textools.rb --fixtexmftrees ~/Library/texmf -:1: parse error /usr/local/teTeX/share/texmf.local/scripts/context/ruby/textools.rb --fixtexmftrees ~/Library/texmf ^ I also tried: [powerbook:scripts/context/ruby] himmelblau% ruby textools --fixtexmftrees ~/Library/texmf --force -:1: parse error textools --fixtexmftrees ~/Library/texmf --force ^ I have know idea what that means... What is wrong with the command I used? Steffen