Hey folks!
I'm building a simple study app using Expo, starting from a completely blank template. The only thing I’ve added so far is an AdMob banner component using react-native-google-mobile-ads.
Here's what I did:
Created a blank Expo app
Added a basic Banner component
Imported:
import { BannerAd, BannerAdSize, TestIds } from 'react-native-google-mobile-ads';
And passed the correct banner ID.
Added this to my app.json:
"react-native-google-mobile-ads": {
"android_app_id": "xxxxxxxxxxxxxxxxxxxxxxx",
"ios_app_id": "xxxxxxxxxxxxxxxxxxxxxxx"
}
Then I ran:
npx expo run:android
And boom - got hit with a Kotlin version error:
kotlin_moduleModule was compiled with an incompatible version of Kotlin. `The binary version of its metadata is 2.1.0, expected version is 1.9.0.
Task :react-native-google-mobile-ads:compileDebugKotlin FAILED`
I tried changing the Kotlin version in build.gradle to 2.1.0, but that opened up a whole new can of worms with more errors. I also tried using expo-build-properties to set Kotlin versions, but still no luck.
Has anyone managed to get AdMob working with a recent Expo setup? Any working guides or examples would be super appreciated.
Current versions:
"expo": "~52.0.43"
"react": "18.3.1"
"react-native": "0.76.9"
"react-native-google-mobile-ads": "^15.0.0"
Thanks in advance!