No signature of method: build_cxg6xj9c5whzgudsd0od94tfb.android() - flutter

Question

I am trying to use "camera_deep_ar: ^0.0.2+3" this package and have added dependency, permission and proguard-rules.pro file in android\app directory. but getting below error.
FAILURE: Build failed with an exception.
* Where:
Build file 'D:\temporery1\android\app\build.gradle' line: 29
* What went wrong:
A problem occurred evaluating project ':app'.
> No signature of method: build_cxg6xj9c5whzgudsd0od94tfb.android() is applicable for argument
types: (build_cxg6xj9c5whzgudsd0od94tfb$_run_closure2) values:
[build_cxg6xj9c5whzgudsd0od94tfb$_run_closure2#28654672]
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 2s
Exception: Gradle task assembleDebug failed with exit code 1
My app/build.gradle code is:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
android {
compileSdkVersion flutter.compileSdkVersion
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
androidResources {
noCompress '...'
}
kotlinOptions {
jvmTarget = '1.8'
}
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "com.example.temporery2"
minSdkVersion 19
targetSdkVersion flutter.targetSdkVersion
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
}
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now, so `flutter run --release` works.
signingConfig signingConfigs.debug
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
minifyEnabled true
}
}
}
flutter {
source '../..'
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}
Please guide me how i can solve this issue. from last 2 days i am trying to resolve this issue.