This seems to be manifest merging error. I\'m trying to port existing code to instant app module. What I\'ve tried is :
The issue for me was that I was using crashlytics and another debug utility that do not play well with instant apps. This was causing the manifest merging to fail. When I removed Crashlytics and the other utility, the manifest for the APK was able to be successfully generated and Android Studio was able to find the default activity which was present in the base feature.