I also experienced this Problem. I got it working by following steps:
1. follow setup and select cloud restore
2. finish setup
3. when stuck in restoring screen restart phone by long pressing power button
4. after reboot setup is displayed again ...
Resurrection Remix Oreo
Unofficial Open GApps 8.1
How to Build Resurrection Remix ROM Tutorial
Resurrection Remix Github Source
Big thanks to:
That's true. Having the latest Android version running on your device does feel better, but there is one problem still... Being a sprout4 user I know the problems, I really had a rough time with marshmallow, even link2sd failed in it whereas KitKa...