Would a rogue’s Uncanny Dodge ability work as intended against a Magic Missile spell?

@JeremyECrawford quick question; would a rogue's Uncanny Dodge ability work as intended against a Magic Missile spell?

— Mason Prater (@RealMasonPrater) July 14, 2017

Uncanny Dodge works against an attack that hits you. Magic missile involves no attack, so Uncanny Dodge is no help against it. #DnD https://t.co/jbPnRra9gw

— Jeremy Crawford (@JeremyECrawford) July 14, 2017