Noob having trouble building app in Android Studio

Hey, this might be dumb, but i’ve never used Android Studio before and decided to try and play around with a project that interests me.

I’m having difficulties in building it and making it run on the emulator. I’ve worked around a few errors regarding licensing but now i’m stuck with a bunch of errors in “geeksville-androidlib” stating multiple deprecated functions in java, aswell as “kotlinx.serializationcore” version being too low.

I don’t think it should have been this hard to run the app, so i’m pretty sure i’m doing some things wrong here.