RailsApps/rails_apps_composer — pull request #82 by the-quantum-mechanic (2012-07-07 06:04:00+00:00)
Title: Specifying an unknown recipe bombs out with a stacktrace.

I used the rails_apps_composer new command with a long list of recipes in the -r argument and one of them was misspelled. I got a stack trace and it wasn't immediately obvious what the problem was. I thought it would be better if the command outputs a nice error message instead.