Build failed while exporting app

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Niotron is unable to compile this project.
The compiler error output was
[ReadBuildInfo] Starting Task
[ReadBuildInfo] Task succeeded in 0.003 seconds
[LoadComponentInfo] Starting Task
[LoadComponentInfo] INFO: Generating assets…
[LoadComponentInfo] Component assets needed, n = 5
[LoadComponentInfo] INFO: Generating activities…
[LoadComponentInfo] Component activities needed, n = 0
[LoadComponentInfo] Component activity metadata needed, n = 0
[LoadComponentInfo] INFO: Generating broadcast receivers…
[LoadComponentInfo] Component content providers needed, n = 0
[LoadComponentInfo] INFO: Generating libraries…
[LoadComponentInfo] Libraries needed, n = 4
[LoadComponentInfo] Component metadata needed, n = 0
[LoadComponentInfo] INFO: Generating Android minimum SDK…
[LoadComponentInfo] INFO: Generating native libraries…
[LoadComponentInfo] Native Libraries needed, n = 0
[LoadComponentInfo] INFO: Generating permissions…
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.CheckBox” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.ChromeCustomTab” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Clock” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Form” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.HorizontalArrangement” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Image” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Label” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.NiotronCardView” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.NiotronMaterialButton” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.NiotronPopupMenu” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.NiotronRecyclerListView” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.NiotronWallpaperManager” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Notifier” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.PackageUtils” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Spacer” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Spinner” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.VerticalArrangement” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.google.appinventor.components.runtime.Web” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.dreamers.ImageScale.ImageScale” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.devyb.devybimageloader.DevYBImageLoader” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.riad.relativeview.RelativeView” does not specify permissionConstraints
[LoadComponentInfo] INFO: Component “com.dreamers.AlphaDialog.AlphaDialog” does not specify permissionConstraints
[LoadComponentInfo] usesLocation = False
[LoadComponentInfo] Permissions needed, n = 12
[LoadComponentInfo] INFO: Component “com.dreamers.ImageScale.ImageScale” does not specify queries
[LoadComponentInfo] INFO: Component “com.devyb.devybimageloader.DevYBImageLoader” does not specify queries
[LoadComponentInfo] INFO: Component “com.dreamers.AlphaDialog.AlphaDialog” does not specify queries
[LoadComponentInfo] Component services needed, n = 0
[LoadComponentInfo] INFO: Generating component broadcast receivers…
[LoadComponentInfo] Task succeeded in 0.003 seconds
[CheckPremium] Starting Task
[CheckPremium] INFO: Checking User Premium…
[CheckPremium] INFO: Getting User Monetization Status…
[CheckPremium] Task succeeded in 0.506 seconds
[CheckCoreComponents] Starting Task
[CheckCoreComponents] INFO: Checking Core Components…
[CheckCoreComponents] Task succeeded in 0.0 seconds
[CheckRequiredAssets] Starting Task
[CheckRequiredAssets] Task succeeded in 0.0 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 0.141 seconds
[CreateIconSplash] Starting Task
[CreateIconSplash] INFO: Generating splash icon…
[CreateIconSplash] Task succeeded in 0.0 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] Task succeeded in 0.001 seconds
[CreateManifest] Starting Task
[CreateManifest] INFO: Reading project specs…
[CreateManifest] VCode: 1
[CreateManifest] VName: 1.0
[CreateManifest] Min SDK 21
[CreateManifest] INFO: Writing screen ‘com.niotron.upplearn_in.Wallpaper.home’
[CreateManifest] INFO: Writing screen ‘com.niotron.upplearn_in.Wallpaper.view’
[CreateManifest] INFO: Writing screen ‘com.niotron.upplearn_in.Wallpaper.Screen1’
[CreateManifest] Task succeeded in 0.001 seconds
[CreateConditionalXmls] Starting Task
[CreateConditionalXmls] Task succeeded in 0.0 seconds
[AttachDependencies] Starting Task
[AttachDependencies] INFO: Attaching dependencies…
[AttachDependencies] Task succeeded in 0.027 seconds
[AttachMediationAdapterLibraries] Starting Task
[AttachMediationAdapterLibraries] Task succeeded in 0.0 seconds
[AttachNativeLibs] Starting Task
[AttachNativeLibs] Task succeeded in 0.001 seconds
[AttachAarLibs] Starting Task
[AttachAarLibs] Task succeeded in 0.178 seconds
[AttachCompAssets] Starting Task
[AttachCompAssets] Task succeeded in 0.012 seconds
[MergeManifests] Starting Task
[MergeManifests] Task succeeded in 0.568 seconds
[MergeResources] Starting Task
[MergeResources] Task succeeded in 0.192 seconds
[RunJetifier] Starting Task
[RunJetifier] INFO: Running Jetifier…
[RunJetifier] Task succeeded in 1.073 seconds
[SetupLibs] Starting Task
[SetupLibs] Task succeeded in 0.0 seconds
[RunAapt2] Starting Task
[RunAapt2] USING EXPLODED AAR LIBS
[RunAapt2] ERROR: Could not execute AAPT2 link step
[RunAapt2] ERROR: Error while linking with AAPT2
[RunAapt2] Task errored in 1.091 seconds

[abhijith]

Could you send me the AIA?

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@abhijith Any update sir?

[abhijith]

It’s an issue with your package name: com.4kwallpaper.upplearn

It cannot start with a number. You might have to rename it to com.wallpaper4k.upplearn or something.

[Learn]

Ok sure i will check