Coffeescript Compiling error

[drodeur]

I currently try to run a guard command on my project and I get a compile error.

[coffeescript] Error in compiling file: C:/Ruby200/lib/ruby/gems/2.0.0/gems/jasmine-headless-webkit-0.9.9.rc1/vendor/assets/javascripts/jasmine-extensions.coffee

Invalid argument - (project dir)/.jhw-cache/coffee_script/C: (in C:/Ruby200/lib/ruby/gems/2.0.0/gems/jasmine-headless-webkit-0.9.9.rc1/vendor/assets/javascripts/jasmine-extensions.coffee)

Windows 7 with Qt5.1

Any solution for me?