Migrating old ionic Vue app to latest , get adroid build error, android:exported needs to be explicitly specified

I get the build error on android, for android 12

Manifest merger failed : android:exported needs to be explicitly specified for element service#com.getcapacitor.CapacitorFirebaseMessagingService

but I don’t ‘use’ that service…

and I don’t know where this should be set … when I search for files containingh is “service” entry
I get all intermediate files, which means generated…

./android/app/build/intermediates/merged_manifest/debug/AndroidManifest.xml:            android:name="com.getcapacitor.CapacitorFirebaseMessagingService"
./android/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml:            android:name="com.getcapacitor.CapacitorFirebaseMessagingService"
./android/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt:87            android:name="com.getcapacitor.CapacitorFirebaseMessagingService"
./android/app/build/intermediates/packaged_manifests/debug/AndroidManifest.xml:            android:name="com.getcapacitor.CapacitorFirebaseMessagingService"
./android/app/build/outputs/logs/manifest-merger-debug-report.txt:service#com.getcapacitor.CapacitorFirebaseMessagingService

how do I fix this at the source?

ionic --version
6.20.3

starting over fixes the build errors