I am trying to issue an Android update using GMS 1.4. My old update used SDK 24, and the Google Play store now requires 26. I changed it from 24 to 26 in my GMS project settings, leaving everything else as-is. And I get this error now at the end of compile. Anyone know what I need to do? Do I need to update my Android SDK maybe? It seemed to be compiling OK for a good long time, like 20 minutes, before failing with this error. My Build tools are 24.0.3 and the support lib is 24.2.1. Maybe those need to be updated to handle SDK 26? I have not worked with Android in forever -- anyone got any tips on how to do it without screwing everything up? I don't want to update my Android SDK past the point where it will work with GMS 1.4. Right now my SDK manager says I have SDK Platform Tools 26 and SDK Tools 25.2.5. Thanks!