Your Main Activity class com.ryanheise.audioservice.AudioServiceActivity is not a subclass FlutterFragmentActivity

I'm trying to create music app uses just_audio & just_audio_background plugins, App is working fine but I'm trying to integrate Stripe from flutter_stripe plugin. I get an exception when click on checkout button. its look like class com.ryanheise.audioservice.AudioServiceActivity from just_audio_background conflicting with flutter_stripe plugin

Exception Your Main Activity class com.ryanheise.audioservice.AudioServiceActivity is not a subclass FlutterFragmentActivity.

MainActivity.kt

package com.example.spotify
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.android.FlutterFragmentActivity
class MainActivity: FlutterFragmentActivity() {
}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.spotify"
    xmlns:tools="http://schemas.android.com/tools">
   <uses-permission android:name="android.permission.INTERNET"/>
   <uses-permission android:name="android.permission.WAKE_LOCK"/>
   <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
   
   <application
        android:label="spotify"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher"
        android:usesCleartextTraffic="true">
        <activity
            android:name="com.ryanheise.audioservice.AudioServiceActivity"
            android:exported="true"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
            
        </activity>

      
        <!-- Don't delete the meta-data below.
             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    <service android:name="com.ryanheise.audioservice.AudioService"
        android:foregroundServiceType="mediaPlayback"
        android:exported="true" tools:ignore="Instantiatable">
      <intent-filter>
        <action android:name="android.media.browse.MediaBrowserService" />
      </intent-filter>
    </service>

    <!-- ADD THIS "RECEIVER" element -->
    <receiver android:name="com.ryanheise.audioservice.MediaButtonReceiver"
        android:exported="true" tools:ignore="Instantiatable">
      <intent-filter>
        <action android:name="android.intent.action.MEDIA_BUTTON" />
      </intent-filter>
    </receiver>     
    </application>
</manifest>

`

I tried custom activity defining directly into menifest but its not work. please help me I'm newbie

You can try AudioServiceFragmentActivity instead of AudioServiceActivity. More information about the different ways to define an audio service activity can be found in the audio_service documentation.