Unable to compile this plugin with AndroidX.

[pneves001]

/flutter/.pub-cache/hosted/pub.dartlang.org/fast_qr_reader_view-0.1.5/android/src/main/java/co/apperto/fastqrreaderview/java/VisionProcessorBase.java:18: error: package android.support.annotation does not exist
import android.support.annotation.NonNull;

[paldrian]

+1

[James-A-White]

I was getting these errors as well and I think the issue was how I modified the build.gradle files. I'd suggest removing the dependency to fast_qr_reader_view and get your project to compile and run on an Android device, then follow these steps very carefully. This got it working for me.