Not able to build flutter application in android

Question

When I run the application using the flutter run command in an android phone attached to the system, it shows me the below error. Not able to figure out what's the problem. Saw some github discussions on this, tried few solutions given by the developers on that discussion, but still showing me the same error.

The error occurred is as follows:-

The code in the pubspec.yaml file is as follows:-

The code written in the main.dart file is as follows:-

import 'package:camera/camera.dart';
import 'package:flutter/material.dart';
import 'package:tflite/tflite.dart';

List<CameraDescription>? cameras;

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  cameras = await availableCameras();
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark(),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late CameraImage cameraImage;
  late CameraController cameraController;
  String result = "";

  initCamera() {
    cameraController = CameraController(cameras![0], ResolutionPreset.medium);
    cameraController.initialize().then((value) {
      if (!mounted) return;
      setState(() {
        cameraController.startImageStream((imageStream) {
          cameraImage = imageStream;
          runModel();
        });
      });
    });
  }

  loadModel() async {
    await Tflite.loadModel(
        model: "assets/model.tflite", labels: "assets/labels.txt");
  }

  runModel() async {
    if (cameraImage != null) {
      var recognitions = await Tflite.runModelOnFrame(
          bytesList: cameraImage.planes.map((plane) {
            return plane.bytes;
          }).toList(),
          imageHeight: cameraImage.height,
          imageWidth: cameraImage.width,
          imageMean: 127.5,
          imageStd: 127.5,
          rotation: 90,
          numResults: 2,
          threshold: 0.1,
          asynch: true);
      recognitions?.forEach((element) {
        setState(() {
          result = element["label"];
          print(result);
        });
      });
    }
  }

  @override
  void initState() {
    super.initState();
    initCamera();
    loadModel();
  }

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          title: Text("Face Mask Detector"),
        ),
        body: Column(
          children: [
            Padding(
              padding: const EdgeInsets.all(20),
              child: Container(
                height: MediaQuery.of(context).size.height - 170,
                width: MediaQuery.of(context).size.width,
                child: !cameraController.value.isInitialized
                    ? Container()
                    : AspectRatio(
                        aspectRatio: cameraController.value.aspectRatio,
                        child: CameraPreview(cameraController),
                      ),
              ),
            ),
            Text(
              result,
              style: TextStyle(fontWeight: FontWeight.bold, fontSize: 25),
            )
          ],
        ),
      ),
    );
  }
}

The code written in the android/app/build.gradle file is as follows:-

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 23
    ndkVersion flutter.ndkVersion

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.harm_fmd"
        // You can update the following values to match your application needs.
        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
        minSdkVersion 21
        targetSdkVersion flutter.targetSdkVersion
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }
    }

    aaptOptions {
        noCompress 'tflite'
        noCompress 'lite'
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}