yichael_smartbow/Assets/BowArrow/Scripts/Pay/plugin/Android/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.DefaultCompany.serialport" >

    <uses-sdk android:minSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:supportsRtl="true" >
        <activity
            android:name="com.example.serialport.serialport"
            android:exported="true" >

            <meta-data
                android:name="unityplayer.UnityActivity"
                android:value="true" />
        </activity>
    </application>

</manifest>