Why??
App Inventor 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 = 2
[LoadComponentInfo] INFO: Generating activities...
[LoadComponentInfo] Component activities needed, n = 2
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify activityMetadata
[LoadComponentInfo] Component activity metadata needed, n = 0
[LoadComponentInfo] INFO: Generating broadcast receivers...
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify broadcastReceivers
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify contentProviders
[LoadComponentInfo] INFO: Generating libraries...
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify libraries
[LoadComponentInfo] Libraries needed, n = 16
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify metadata
[LoadComponentInfo] Component metadata needed, n = 0
[LoadComponentInfo] INFO: Generating Android minimum SDK...
[LoadComponentInfo] INFO: Generating native libraries...
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify native
[LoadComponentInfo] Native Libraries needed, n = 0
[LoadComponentInfo] INFO: Generating permissions...
[LoadComponentInfo] usesLocation = False
[LoadComponentInfo] Permissions needed, n = 27
[LoadComponentInfo] INFO: Component "com.gordonlu.device.Device" does not specify queries
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify queries
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" does not specify services
[LoadComponentInfo] INFO: Generating component broadcast receivers...
[LoadComponentInfo] INFO: Component "io.horizon.qrcodegenerator.QRCodeGenerator" 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 1.322 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 0.003 seconds
[CreateManifest] Starting Task
[CreateManifest] INFO: Reading project specs...
[CreateManifest] VCode: 1
[CreateManifest] VName: 1.0
[CreateManifest] Min SDK 8
[CreateManifest] INFO: Writing screen 'appinventor.ai_zjc10386422.Ewallet.Screen1'
[CreateManifest] INFO: Writing screen 'appinventor.ai_zjc10386422.Ewallet.Screen2'
[CreateManifest] INFO: Writing screen 'appinventor.ai_zjc10386422.Ewallet.Screen3'
[CreateManifest] Task succeeded in 0.0 seconds
[AttachNativeLibs] Starting Task
[AttachNativeLibs] Task succeeded in 0.0 seconds
[AttachAarLibs] Starting Task
[AttachAarLibs] Task succeeded in 0.133 seconds
[AttachCompAssets] Starting Task
[AttachCompAssets] Task succeeded in 0.001 seconds
[MergeResources] Starting Task
[MergeResources] Task succeeded in 0.173 seconds
[SetupLibs] Starting Task
[SetupLibs] Task succeeded in 0.0 seconds
[RunAapt] Starting Task
[RunAapt] Task succeeded in 1.608 seconds
[GenerateClasses] Starting Task
[GenerateClasses] INFO: Source File: appinventor/ai_zjc10386422/Ewallet/Screen1.yail
[GenerateClasses] INFO: Source File: appinventor/ai_zjc10386422/Ewallet/Screen2.yail
[GenerateClasses] INFO: Source File: appinventor/ai_zjc10386422/Ewallet/Screen3.yail
[GenerateClasses] INFO: Libraries Classpath = /tmp/kawa5492409437026485280.jar:/tmp/acra-4.4.01377290904905696975.jar:/tmp/AndroidRuntime6663010395104969386.jar:/tmp/annotation3945595650949195002.jar:/tmp/annotation-experimental12738850384851070778.jar:/tmp/appcompat11754200723834923317.jar:/tmp/asynclayoutinflater4718196777116462332.jar:/tmp/collection9077894712913704586.jar:/tmp/constraintlayout16752375672072557350.jar:/tmp/constraintlayout-solver10312440659636278267.jar:/tmp/coordinatorlayout13987105096239572474.jar:/tmp/core11126437965702713281.jar:/tmp/core-common14582287973164388817.jar:/tmp/core-runtime16167141766369985662.jar:/tmp/cursoradapter16120857357761941992.jar:/tmp/customview9716814653714532155.jar:/tmp/documentfile10458600504528792404.jar:/tmp/drawerlayout4780990259150020063.jar:/tmp/fragment6043397237197295247.jar:/tmp/interpolator15414136053736477782.jar:/tmp/legacy-support-core-ui1780070019425506342.jar:/tmp/legacy-support-core-utils451060399114915931.jar:/tmp/lifecycle-common7620489769186931171.jar:/tmp/lifecycle-livedata4138700495326410795.jar:/tmp/lifecycle-livedata-core3252158039446875133.jar:/tmp/lifecycle-runtime1065461231245290032.jar:/tmp/lifecycle-viewmodel9010517728341425424.jar:/tmp/loader13924158677675666956.jar:/tmp/localbroadcastmanager6822027761229053575.jar:/tmp/print17183294737945521501.jar:/tmp/slidingpanelayout3381330677557936042.jar:/tmp/swiperefreshlayout17745027411094295196.jar:/tmp/vectordrawable12945823912407890520.jar:/tmp/vectordrawable-animated6438250350594383777.jar:/tmp/versionedparcelable1718131174758330572.jar:/tmp/viewpager10013845882692900755.jar:/tmp/1741941450989_1729006110119485440-0/youngandroidproject/../assets/external_comps/com.gordonlu.device/files/AndroidRuntime.jar:/tmp/1741941450989_1729006110119485440-0/youngandroidproject/../assets/external_comps/io.horizon.qrcodegenerator/files/AndroidRuntime.jar:/tmp/protobuf-java-3.0.014910937875973995131.jar:/tmp/protobuf-java-3.0.014910937875973995131.jar:/tmp/recyclerview61439178328988360.jar:/tmp/cardview1995011099358169917.jar:/tmp/dynamicanimation15634318748508752089.jar:/tmp/Barcode7459128787892020493.jar:/tmp/QRGenerator11438209697377764299.jar:/tmp/androidsvg9649217578299769543.jar:/tmp/jedis14622958335115145069.jar:/tmp/osmdroid7369752352781378040.jar:/tmp/jts3026975599464930221.jar:/tmp/androidsvg9649217578299769543.jar:/tmp/1741941450989_1729006110119485440-0/youngandroidproject/../build/classes:/tmp/android331576690643122216.jar
(compiling appinventor/ai_zjc10386422/Ewallet/Screen1.yail to appinventor.ai_zjc10386422.Ewallet.Screen1)
(compiling appinventor/ai_zjc10386422/Ewallet/Screen2.yail to appinventor.ai_zjc10386422.Ewallet.Screen2)
(compiling appinventor/ai_zjc10386422/Ewallet/Screen3.yail to appinventor.ai_zjc10386422.Ewallet.Screen3)
(compiling /tmp/runtime16380190903889579600.scm to com.google.youngandroid.runtime)
[GenerateClasses] Task succeeded in 48.413 seconds
[RunD8] Starting Task
[RunD8] INFO: Using pre-dexed dex-cached-40f8426124eca74b9e3b21a8ed203e37.dex <- /tmp/AndroidRuntime6663010395104969386.jar
[RunD8] INFO: Using pre-dexed dex-cached-4afd1465d334dee94ac700edb0374a45.dex <- /tmp/kawa5492409437026485280.jar
[RunD8] INFO: Using pre-dexed dex-cached-558104d32e109ad96655ecbe9fe4e39f.dex <- /tmp/annotation3945595650949195002.jar
[RunD8] INFO: Using pre-dexed dex-cached-ef239d31d31d166f7410d71e14db1a68.dex <- /tmp/swiperefreshlayout17745027411094295196.jar
[RunD8] INFO: Using pre-dexed dex-cached-de87276390f7a8c71064f3e7908c143b.dex <- /tmp/core-common14582287973164388817.jar
[RunD8] INFO: Using pre-dexed dex-cached-c950a9845cca4523f19bc2fc922b41bf.dex <- /tmp/legacy-support-core-utils451060399114915931.jar
[RunD8] INFO: Using pre-dexed dex-cached-35076b6f638faca00c217e98a0385344.dex <- /tmp/interpolator15414136053736477782.jar
[RunD8] INFO: Using pre-dexed dex-cached-bee920fd1e059913bf2d820dbb234720.dex <- /tmp/lifecycle-common7620489769186931171.jar
[RunD8] INFO: Using pre-dexed dex-cached-1e4d689047e2ee2cc76b7203626e9c33.dex <- /tmp/customview9716814653714532155.jar
[RunD8] INFO: Using pre-dexed dex-cached-74360288e1016af9d6afdd39a2caa1b8.dex <- /tmp/asynclayoutinflater4718196777116462332.jar
[RunD8] INFO: Using pre-dexed dex-cached-d53c4c8eedbf41663110b03a33fe9914.dex <- /tmp/lifecycle-runtime1065461231245290032.jar
[RunD8] INFO: Using pre-dexed dex-cached-032c68a2c5e93c1baac1524e105bbe88.dex <- /tmp/collection9077894712913704586.jar
[RunD8] INFO: Using pre-dexed dex-cached-91b7d1f3cb5fd0fd2f3a4c939316139b.dex <- /tmp/versionedparcelable1718131174758330572.jar
[RunD8] INFO: Using pre-dexed dex-cached-16ea1fc3b7e49139559eafccec2708ab.dex <- /tmp/lifecycle-viewmodel9010517728341425424.jar
[RunD8] INFO: Using pre-dexed dex-cached-84637f838557e65ad5856467fd22316c.dex <- /tmp/print17183294737945521501.jar
[RunD8] INFO: Using pre-dexed dex-cached-a9e803bf51318b35fcaf603f59f25f7c.dex <- /tmp/vectordrawable12945823912407890520.jar
[RunD8] INFO: Using pre-dexed dex-cached-b73957ec00af79319f56aedf27dff3fc.dex <- /tmp/core-runtime16167141766369985662.jar
[RunD8] INFO: Using pre-dexed dex-cached-4e788f5c66d33a47036ae77a849ffa1b.dex <- /tmp/core11126437965702713281.jar
[RunD8] INFO: Using pre-dexed dex-cached-e890ce7827a13b8714afbb241f7e89b2.dex <- /tmp/lifecycle-livedata-core3252158039446875133.jar
[RunD8] INFO: Using pre-dexed dex-cached-9e7da29c234333f4d245d8baa48e1746.dex <- /tmp/annotation-experimental12738850384851070778.jar
[RunD8] INFO: Using pre-dexed dex-cached-81757b9148a3984b5874ef1fd300acdb.dex <- /tmp/documentfile10458600504528792404.jar
[RunD8] INFO: Using pre-dexed dex-cached-b83403f2b639cc6e7a6f9c0681d69367.dex <- /tmp/viewpager10013845882692900755.jar
[RunD8] INFO: Using pre-dexed dex-cached-c2a16bb02f51a6fcd1ff46dd1a78d0bf.dex <- /tmp/slidingpanelayout3381330677557936042.jar
[RunD8] INFO: Using pre-dexed dex-cached-2eabb48fdf784357d984acbda18ea6a3.dex <- /tmp/appcompat11754200723834923317.jar
[RunD8] INFO: Using pre-dexed dex-cached-7a5a85c38b934be86a121ca9b5e7477b.dex <- /tmp/vectordrawable-animated6438250350594383777.jar
[RunD8] INFO: Using pre-dexed dex-cached-a3a712d1d179d231b40a977ed5593202.dex <- /tmp/lifecycle-livedata4138700495326410795.jar
[RunD8] INFO: Using pre-dexed dex-cached-9b1768a7734de4eaf5a635a007ad4b25.dex <- /tmp/coordinatorlayout13987105096239572474.jar
[RunD8] INFO: Using pre-dexed dex-cached-d3d338969c3cd4ad53a888753da3b580.dex <- /tmp/cursoradapter16120857357761941992.jar
[RunD8] INFO: Using pre-dexed dex-cached-a116e0a41475b6522ae295f7cc4ff4b3.dex <- /tmp/legacy-support-core-ui1780070019425506342.jar
[RunD8] INFO: Using pre-dexed dex-cached-a07a23b88daaae0b48cdd25378e03b03.dex <- /tmp/localbroadcastmanager6822027761229053575.jar
[RunD8] INFO: Using pre-dexed dex-cached-bb8901219e7be6c576cc65e75503d7fa.dex <- /tmp/fragment6043397237197295247.jar
[RunD8] INFO: Using pre-dexed dex-cached-fca718e99e97cb52f4c8c0ada2c74e72.dex <- /tmp/drawerlayout4780990259150020063.jar
[RunD8] INFO: Using pre-dexed dex-cached-ccb6f0c5e0adc11059c3d609a2fd15d6.dex <- /tmp/loader13924158677675666956.jar
[RunD8] INFO: Using pre-dexed dex-cached-c0e4dda29672c028ea3ce0e3785040de.dex <- /tmp/constraintlayout16752375672072557350.jar
[RunD8] INFO: Using pre-dexed dex-cached-85f46a2fd295a23f59a391cccd7a11c8.dex <- /tmp/constraintlayout-solver10312440659636278267.jar
[RunD8] INFO: Using pre-dexed dex-cached-0dc56f08e767617776af0e9817e5d429.dex <- /tmp/jedis14622958335115145069.jar
[RunD8] INFO: Using pre-dexed dex-cached-49102e7f4c0a5df23a0a119cd2914bab.dex <- /tmp/protobuf-java-3.0.014910937875973995131.jar
[RunD8] INFO: Using pre-dexed dex-cached-537bdf06d79c5d08d96ae41f5bb9e14a.dex <- /tmp/osmdroid7369752352781378040.jar
[RunD8] INFO: Using pre-dexed dex-cached-8c68f33449d83e4c9d619149c8a907e3.dex <- /tmp/Barcode7459128787892020493.jar
[RunD8] INFO: Using pre-dexed dex-cached-742155d268fadbad92adb35be882bd67.dex <- /tmp/recyclerview61439178328988360.jar
[RunD8] INFO: Using pre-dexed dex-cached-50376604002609b65556571e82e56cbc.dex <- /tmp/jts3026975599464930221.jar
[RunD8] INFO: Using pre-dexed dex-cached-ae0a0504ff198c23ba89f60cba6bee1b.dex <- /tmp/dynamicanimation15634318748508752089.jar
[RunD8] INFO: Using pre-dexed dex-cached-34183dd13eefd80bd93dbefb2cca2c89.dex <- /tmp/QRGenerator11438209697377764299.jar
[RunD8] INFO: Using pre-dexed dex-cached-5ac7fbcd3db479aefb3c1ac19684bf6c.dex <- /tmp/androidsvg9649217578299769543.jar
[RunD8] INFO: Using pre-dexed dex-cached-1bc51353c62ddc7fef531c4bbfd9e480.dex <- /tmp/cardview1995011099358169917.jar
[RunD8] ERROR: d8 failed.
[RunD8] Task errored in 18.467 seconds