I like to see this beautiful app, but I think there's a error on flute_music_player

https://github.com/iampawan/Flute-Music-Player/issues/16

C:\src\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:10: error: package android.support.v7.app does not exist import android.support.v7.app.AppCompatActivity; ^ C:\src\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:15: error: cannot find symbol public static boolean hasExternalStorageAccess(AppCompatActivity activity) { ^ symbol: class AppCompatActivity location: class MusicHelper Note: C:\src\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: C:\src\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 2 errors Running Gradle task 'assembleDebug'... Running Gradle task 'assembleDebug'... Done 24.6s

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. See https://goo.gl/CP92wY for more information on the problem and how to fix it.

Gradle task assembleDebug failed with exit code 1

flutter run Using hardware rendering with device AOSP on IA Emulator. If you get graphics artifacts, consider enabling software rendering with "--enable-software-rendering". Launching lib\main.dart on AOSP on IA Emulator in debug mode... Initializing gradle... 1.8s Resolving dependencies... 9.7s C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:8: error: cannot find symbol import android.support.v4.app.ActivityCompat; ^
symbol: class ActivityCompat location: package android.support.v4.app C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:9: error: package android.support.v4.content does not exist import android.support.v4.content.ContextCompat; ^ C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:10: error: package android.support.v7.app does not exist import android.support.v7.app.AppCompatActivity; ^ C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:15: error: cannot find symbol public static boolean hasExternalStorageAccess(AppCompatActivity activity) { ^ symbol: class AppCompatActivity location: class MusicHelper C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:16: error: cannot find symbol if(ContextCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE) ^ symbol: variable ContextCompat location: class MusicHelper C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:19: error: cannot find symbol ActivityCompat.requestPermissions(activity, ^ symbol: variable ActivityCompat location: class MusicHelper Note: C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: C:\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 6 errors Running Gradle task 'assembleDebug'... Running Gradle task 'assembleDebug'... Done 6.7s

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. See https://goo.gl/CP92wY for more information on the problem and how to fix it.

Gradle task assembleDebug failed with exit code 1

I have added the imports and dependencies

import android.Manifest;
import android.content.pm.PackageManager;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.appcompat.app.AppCompatActivity;

and

implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.core:core:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

But I'm still getting these errors when trying to build the release:

C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:8: error: package androidx.core.app does not exist import androidx.core.app.ActivityCompat; ^ C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:9: error: package androidx.core.content does not exist import androidx.core.content.ContextCompat; ^ C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:10: error: package androidx.appcompat.app does not exist import androidx.appcompat.app.AppCompatActivity; ^ C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:15: error: cannot find symbol public static boolean hasExternalStorageAccess(AppCompatActivity activity) { ^ symbol: class AppCompatActivity location: class MusicHelper C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:16: error: cannot find symbol if(ContextCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE) ^ symbol: variable ContextCompat location: class MusicHelper C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicHelper.java:19: error: cannot find symbol ActivityCompat.requestPermissions(activity, ^ symbol: variable ActivityCompat location: class MusicHelper Note: C:\Users...Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: C:\Users...\Desktop\flutter.pub-cache\hosted\pub.dartlang.org\flute_music_player-0.0.6\android\src\main\java\com\mtechviral\musicfinder\MusicFinderPlugin.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 6 errors

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':compileReleaseJavaWithJavac'.

Compilation failed; see the compiler error output for details.

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 32s

The plugin flute_music_player could not be built due to the issue above.