Several people have reported that expo-cli 3.2.2 is not working for them for building for Android, but that downgrading to 3.1.2 fixes the problem for them.
I suggest downgrading for the moment. I’m sure the problem will be fixed soon.
We just pushed a fix to XDL to resolve this issue. To get this fix, you’ll have to either install 3.2.3 or re-install it if you already installed it within the last 2 hours.