milessabin/shapeless — pull request #45 by jonifreeman (2013-08-28 11:24:59+00:00)
Title: More descriptive compilation failure message for invalid record access

scala> val r = ("name" ->> "Joe") :: ("age" ->> 13) :: HNil
scala> r get "bzzzt"
error: No field String("bzzzt") in record ...

instead of

error: could not find implicit value for parameter selector ...