Missing "exported" attributed in manifest while generating APK about com.unity.mobile.notifications HOT 5 CLOSED

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.unity3d.player"
          android:installLocation="preferExternal" android:versionCode="1" android:versionName="1.0">
    <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true"
                      android:xlargeScreens="true" android:anyDensity="true"/>
    <application android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:icon="@drawable/app_icon"
                 android:label="@string/app_name">
        <activity android:name="com.unity3d.player.UnityPlayerActivity" android:label="@string/app_name"
                  android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
            <meta-data android:name="unityplayer.UnityActivity" android:value="true"/>
        </activity>

        <receiver
                android:name="com.unity.androidnotifications.UnityNotificationManager"
                android:exported="true" />
        <receiver
                android:name="com.unity.androidnotifications.UnityNotificationRestartOnBootReceiver"
                android:exported="true"
                android:enabled="false">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>
    </application>
</manifest>