This is a confusing problem, I’ve tried to use ML-kits barcode scanner to detect QR codes, if I place the dependency implementation 'com.google.mlkit:barcode-scanning:17.2.0' in the app level Build.gradle the reader works fine. If i ty to add that in my module level build.gradle then the application crashes by citing com.google.android.gms.common.api.optionalmoduleapi class is not found. What may the issue?