未解析的 package/class/symbol Android.manifest flutter

问：

我从 github 下载了一个项目并能够运行它，但我在清单文件中遇到了这些错误。任何人都可以指导如何解决这些错误吗？我尝试导入 reuired 依赖项并运行 pub get，但无法解决这些问题。应用程序正在运行，但其中没有音频。

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.learn_quran_app">
    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
         calls FlutterMain.startInitialization(this); in its onCreate method.
         In most cases you can leave this as-is, but you if you want to provide
         additional functionality it is fine to subclass or reimplement
         FlutterApplication and put your custom class here. -->
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
    <application
        android:name="${applicationName}"
        android:label="Learn Quran"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name="com.ryanheise.audioservice.AudioServiceActivity"
            android:launchMode="singleTop"
            android:exported="true"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">



            <!-- Specifies an Android theme to apply to this Activity as soon as
                 the Android process has started. This theme is visible to the user
                 while the Flutter UI initializes. After that, this theme continues
                 to determine the Window background behind the Flutter UI. -->
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <!-- Displays an Android View that continues showing the launch screen
                 Drawable until Flutter paints its first frame, then this splash
                 screen fades out. A splash screen is useful to avoid any visual
                 gap between the end of Android's launch screen and the painting of
                 Flutter's first frame. -->
            <meta-data
              android:name="io.flutter.embedding.android.SplashScreenDrawable"
              android:resource="@drawable/launch_background"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>

        </activity>

        <service android:name="com.ryanheise.audioservice.AudioService" android:exported="true">
          <intent-filter>
            <action android:name="android.media.browse.MediaBrowserService" />
          </intent-filter>
        </service>
        <receiver android:name="com.ryanheise.audioservice.MediaButtonReceiver" android:exported="true">
          <intent-filter>
            <action android:name="android.intent.action.MEDIA_BUTTON" />
          </intent-filter>
        </receiver> 
        <!-- 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" />


    </application>
</manifest>