It's the same error with or without. Here's the error: match: color does not refer to a structure definition
Here are two complete source files (no teachpacks), running Adv. Student, DrRacket 5.1.3. ;; begin file 1 (match (make-color 1 2 3) [(struct color (r g b)) (+ r g b)]) ;; begin file 2 (require 2htdp/image) (match (make-color 1 2 3) [(struct color (r g b)) (+ r g b)]) On Oct 31, 2011, at 9:39 PM, Robby Findler wrote: > Is make-color coming from 2htdp/image? I see that's not working (not > sure why yet). > > Robby
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