@robin commented on
@functor’s file
https://kotlinlang.slack.com/files/U3WSSMT99/F4C4DAM26/pasted_image_at_2017_03_01_04_24_pm.png▾
: That seems to be a common problem, the gradle sync hasn't finished yet and the kotlin plugin thinks that kotlin isn't configured. It's a bit annoying, but you can simply ignore that warning and wait for the sync to finish.