Error will generating custom xml files

I am trying to add a LiveWallpaper service to my extension. Since it requires a .xml file, I used the "Attach Custom XML" feature in Fast, but I get an error when building the APK.

Here’s what I have so far:

AndroidManifest.xml

<service
    android:name=".LiveWallpaper"
    android:label="Wallpaper"
    android:permission="android.permission.BIND_WALLPAPER"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.service.wallpaper.WallpaperService"/>
    </intent-filter>

    <meta-data
        android:name="android.service.wallpaper"
        android:resource="@xml/wallpaper" />
</service>

wallpaper.xml

<?xml version="1.0" encoding="utf-8"?>
<wallpaper xmlns:android="http://schemas.android.com/apk/res/android"
    android:thumbnail="@android:drawable/ic_menu_gallery"
    android:description="Live Wallpaper" />

fast.yml

xmls:
  - wallpaper.xml

Am I doing something wrong? The APK fails to build when I include this configuration.

@JEWEL
@Patryk_F

build error:

App Inventor is unable to compile this project.
The compiler error output was
[ReadBuildInfo] Starting Task
[ReadBuildInfo] Task succeeded in 0.002 seconds
[LoadComponentInfo] Starting Task
[LoadComponentInfo] INFO: Generating assets...
[LoadComponentInfo] Component assets needed, n = 0
[LoadComponentInfo] INFO: Generating activities...
[LoadComponentInfo] Component activities needed, n = 1
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify activityMetadata
[LoadComponentInfo] Component activity metadata needed, n = 0
[LoadComponentInfo] INFO: Generating broadcast receivers...
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify broadcastReceivers
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify contentProviders
[LoadComponentInfo] INFO: Generating libraries...
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify libraries
[LoadComponentInfo] Libraries needed, n = 0
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify metadata
[LoadComponentInfo] Component metadata needed, n = 0
[LoadComponentInfo] INFO: Generating Android minimum SDK...
[LoadComponentInfo] INFO: Generating native libraries...
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify native
[LoadComponentInfo] Native Libraries needed, n = 0
[LoadComponentInfo] INFO: Generating permissions...
[LoadComponentInfo] usesLocation = false
[LoadComponentInfo] Permissions needed, n = 4
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify queries
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify services
[LoadComponentInfo] Component xmls needed, n = 1
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify features
[LoadComponentInfo] Component features needed, n = 0
[LoadComponentInfo] INFO: Generating component broadcast receivers...
[LoadComponentInfo] INFO: Component "me.aemo.engine.Engine" does not specify broadcastReceiver
[LoadComponentInfo] Task succeeded in 0.002 seconds
[PrepareAppIcon] Starting Task
[PrepareAppIcon] INFO: Creating mipmap dirs...
[PrepareAppIcon] INFO: Generating icons...
[PrepareAppIcon] Generating icons for mipmap-mdpi
[PrepareAppIcon] Generating icons for mipmap-hdpi
[PrepareAppIcon] Generating icons for mipmap-xhdpi
[PrepareAppIcon] Generating icons for mipmap-xxhdpi
[PrepareAppIcon] Generating icons for mipmap-xxxhdpi
[PrepareAppIcon] Task succeeded in 0.915 seconds
[XmlConfig] Starting Task
[XmlConfig] INFO: Creating animation xml
[XmlConfig] Creating zoom_enter.xml
[XmlConfig] Creating fadeout.xml
[XmlConfig] Creating slide_v_exit.xml
[XmlConfig] Creating fadein.xml
[XmlConfig] Creating zoom_exit.xml
[XmlConfig] Creating slide_v_enter.xml
[XmlConfig] Creating zoom_exit_reverse.xml
[XmlConfig] Creating slide_v_enter_reverse.xml
[XmlConfig] Creating zoom_enter_reverse.xml
[XmlConfig] Creating slide_enter_reverse.xml
[XmlConfig] Creating slide_exit.xml
[XmlConfig] Creating hold.xml
[XmlConfig] Creating slide_enter.xml
[XmlConfig] Creating slide_v_exit_reverse.xml
[XmlConfig] Creating slide_exit_reverse.xml
[XmlConfig] INFO: Creating style xml
[XmlConfig] INFO: Creating provider_path xml
[XmlConfig] INFO: Creating network_security_config xml
[XmlConfig] INFO: Generating adaptive icon file
[XmlConfig] INFO: Generating round adaptive icon file
[XmlConfig] INFO: Generating adaptive icon background file
[XmlConfig] INFO: Generating custom xml files
[XmlConfig] Task errored

You need to put the xml file at $PROJECT_DIR/assets/xml/wallpaper.xml

xmls:
  - xml/wallpaper.xml

No i got error Build failed! [RunAapt] ERROR: Error running AAPT :frowning: