[chef] chef 10.12.0 can't find right_aws gem

hi. my systems are generally running 0.10.8 and 0.10.10. i'm trying
out 10.12.0 and am immediately experiencing this issue.

error is shown here:
https://gist.github.com/2999919

right_aws is installed in "system" location:
/usr/lib/ruby/gems/1.8/gems/right_aws-2.1.0. but i guess chef 10.12.0
isn't looking for it there..

is there some special way i need to handle gem install or runtime paths
using the chef fullstack installer as of 10.12.0?

thanks,
kallen