[Bug report] On emulator, Document Scanner throws "PlatformException(DocumentScanner, Failed to start document scanner, null, null)"

[pamtbaau]

Describe the bug When calling final documentScanner = DocumentScanner(options: options); an Exception is being thrown:

PlatformException(DocumentScanner, Failed to start document scanner, null, null)

To Reproduce Example Steps to reproduce the behavior in sample app:

1. Create new flutter app using flutter create test --platform=android

2. Replace content of main.dart with:

   import 'package:flutter/material.dart';
   import 'package:google_mlkit_document_scanner/google_mlkit_document_scanner.dart';
   
   void main() {
     runApp(const MyApp());
   }
   
   class MyApp extends StatelessWidget {
     const MyApp({super.key});
   
     @override
     Widget build(BuildContext context) {
       return MaterialApp(
         debugShowCheckedModeBanner: false,
         home: Scaffold(
           body: Center(
             child: IconButton(
               onPressed: _onCameraPressed,
               icon: const Icon(Icons.camera_alt),
             ),
           ),
         ),
       );
     }
   
     Future<void> _onCameraPressed() async {
       final options = DocumentScannerOptions();
   
       try {
         final documentScanner = DocumentScanner(options: options);
         final documents = await documentScanner.scanDocument();
       } catch (ex) {
         print(ex);
       }
     }
   }

3. Run app on emulator using Android 14
4. See printed error

   PlatformException(DocumentScanner, Failed to start document scanner, null, null)

5. Run app on mobile device using Android 14 and all goes well.

Expected behavior As on my mobile phone camera should appear and document can be scanned.

SDK Info:

• Not sure what you mean by this. I did not add any dependency in android/app/build.gradle
• I have tried the following, but with no effect (https://developers.google.com/ml-kit/vision/doc-scanner/android)

  dependencies {
   // …
   implementation 'com.google.android.gms:play-services-mlkit-document-scanner:16.0.0-beta1'
  }

Smartphone:

• Emulator:

  • SDK installed on Emulator: Android SDK Platform 34

  • Google APIs Intel x86_64 Atom System Image

  • System Image: Android 14 (Google APIs)

  • Android SDK Platform tools 35.0.2

  • Google Play Services 49

  • Device: Motorola Moto G13

[pamtbaau]

Moved issue to https://github.com/flutter-ml/google_ml_kit_flutter/issues/699