demos/hangman fails to build on Android and macOS

/home/qt/RTA/Qt_6.7.0/6.7.0/android_x86_64/bin/qt-cmake -S /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman -B /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64 -DANDROID_SDK_ROOT=/opt/android/sdk -DANDROID_NDK_ROOT=/opt/android/android-ndk-r26b -GNinja

[1/79] Copying qml/GameView.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/GameView.qml 
[2/79] Copying qml/Key.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/Key.qml 
[3/79] Copying qml/GuessWordView.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/GuessWordView.qml 
[4/79] Copying qml/HowToView.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/HowToView.qml 
[5/79] Copying qml/StoreItem.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/StoreItem.qml 
[6/79] Copying qml/MainView.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/MainView.qml 
[7/79] Copying qml/Hangman.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/Hangman.qml 
[8/79] Copying qml/PageHeader.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/PageHeader.qml 
[9/79] Copying qml/ScoreItem.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/ScoreItem.qml 
[10/79] Copying qml/SimpleButton.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/SimpleButton.qml 
[11/79] Copying qml/Word.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/Word.qml 
[12/79] Copying qml/Letter.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/Letter.qml 
[13/79] Copying main.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/main.qml 
[14/79] Copying qml/StoreView.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/StoreView.qml 
[15/79] Copying qml/SplashScreen.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/SplashScreen.qml 
[16/79] Copying qml/LetterSelector.qml to /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/Hangman/qml/LetterSelector.qml 
[17/79] Automatic MOC for target hangman 
[18/79] Running rcc for resource qmake_Hangman_copy 
[19/79] Running rcc for resource qmake_Hangman 
[20/79] Running rcc for resource resources 
[21/79] Running AUTOMOC file extraction for target hangman 
[22/79] Running rcc for resource hangman_raw_qml_0 
[23/79] Running moc --collect-json for target hangman 
[24/79] Generating .rcc/qmlcache/hangman_qmlcache_loader.cpp 
[25/79] Automatic QML type registration for target hangman 
[26/79] Generating .rcc/qmlcache/hangman_main_qml.cpp 
[27/79] Generating .rcc/qmlcache/hangman_qml/MainView_qml.cpp 
[28/79] Generating .rcc/qmlcache/hangman_qml/Letter_qml.cpp 
[29/79] Generating .rcc/qmlcache/hangman_qml/PageHeader_qml.cpp 
[30/79] Generating .rcc/qmlcache/hangman_qml/HowToView_qml.cpp 
[31/79] Generating .rcc/qmlcache/hangman_qml/GuessWordView_qml.cpp 
[32/79] Generating .rcc/qmlcache/hangman_qml/GameView_qml.cpp 
[33/79] Generating .rcc/qmlcache/hangman_qml/Key_qml.cpp 
[34/79] Generating .rcc/qmlcache/hangman_qml/Hangman_qml.cpp 
[35/79] Generating .rcc/qmlcache/hangman_qml/ScoreItem_qml.cpp 
[36/79] Generating .rcc/qmlcache/hangman_qml/LetterSelector_qml.cpp 
[37/79] Generating .rcc/qmlcache/hangman_qml/SimpleButton_qml.cpp 
[38/79] Generating .rcc/qmlcache/hangman_qml/SplashScreen_qml.cpp 
[39/79] Generating .rcc/qmlcache/hangman_qml/StoreItem_qml.cpp 
[40/79] Generating .rcc/qmlcache/hangman_qml/Word_qml.cpp 
[41/79] Generating .rcc/qmlcache/hangman_qml/StoreView_qml.cpp 
[42/79] Building CXX object CMakeFiles/hangman.dir/purchasing/inapp/inapppurchasebackend.cpp.o 
[43/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qrc_qmake_Hangman.cpp.o 
[44/79] Building CXX object CMakeFiles/hangman.dir/purchasing/inapp/inappproduct.cpp.o 
[45/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qrc_qmake_Hangman_copy.cpp.o 
[46/79] Building CXX object CMakeFiles/hangman.dir/purchasing/qmltypes/inappstoreqmltype.cpp.o 
[47/79] Building CXX object CMakeFiles/hangman.dir/hangman_qmltyperegistrations.cpp.o 
[48/79] Building CXX object CMakeFiles/hangman.dir/hangman_autogen/mocs_compilation.cpp.o 
[49/79] Building CXX object CMakeFiles/hangman.dir/purchasing/inapp/inappstore.cpp.o 
[50/79] Building CXX object CMakeFiles/hangman.dir/purchasing/inapp/inapptransaction.cpp.o 
[51/79] Building CXX object CMakeFiles/hangman.dir/purchasing/qmltypes/inappproductqmltype.cpp.o 
[52/79] Building CXX object CMakeFiles/hangman.dir/hangmangame.cpp.o 
[53/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/GuessWordView_qml.cpp.o 
[54/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/Key_qml.cpp.o 
[55/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/GameView_qml.cpp.o 
[56/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/LetterSelector_qml.cpp.o 
[57/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qmlcache_loader.cpp.o 
[58/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/Hangman_qml.cpp.o 
[59/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qrc_resources.cpp.o 
[60/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/PageHeader_qml.cpp.o 
[61/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/Letter_qml.cpp.o 
[62/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/HowToView_qml.cpp.o 
[63/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qrc_hangman_raw_qml_0.cpp.o 
[64/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/ScoreItem_qml.cpp.o 
[65/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/Word_qml.cpp.o 
[66/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/MainView_qml.cpp.o 
[67/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/SplashScreen_qml.cpp.o 
[68/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/StoreView_qml.cpp.o 
[69/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/StoreItem_qml.cpp.o 
[70/79] Building CXX object CMakeFiles/hangman.dir/main.cpp.o 
[71/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_qml/SimpleButton_qml.cpp.o 
[72/79] Building CXX object CMakeFiles/hangman.dir/purchasing/android/androidjni.cpp.o 
[73/79] Building CXX object CMakeFiles/hangman.dir/bld_x86_64/.rcc/qmlcache/hangman_main_qml.cpp.o 
[74/79] Building CXX object CMakeFiles/hangman.dir/purchasing/android/androidinappproduct.cpp.o 
[75/79] Building CXX object CMakeFiles/hangman.dir/purchasing/android/androidinapptransaction.cpp.o 
[76/79] Building CXX object CMakeFiles/hangman.dir/purchasing/android/androidinapppurchasebackend.cpp.o 
[77/79] Linking CXX shared module libhangman_x86_64.so 
[78/79] Copying hangman binary to apk folder 
[79/79] Creating APK for hangman
FAILED: CMakeFiles/hangman_make_apk /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/CMakeFiles/hangman_make_apk  
cd /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64 && /home/qt/RTA/Qt_6.7.0/6.7.0/gcc_64/bin/androiddeployqt --input /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-hangman-deployment-settings.json --output /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-build --apk /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-build/hangman.apk "" 
Generating Android Package 
  Input file: /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-hangman-deployment-settings.json 
  Output directory: /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-build/ 
  Application binary: hangman 
  Android build platform: android-34 
  Install to device: No 
Warning: QML import could not be resolved in any of the import paths: QML 
Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.Windows 
Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.macOS 
Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.iOS 
WARNING:We recommend using a newer Android Gradle plugin to use compileSdk = 34  
This Android Gradle plugin (7.4.1) was tested up to compileSdk = 33  
This warning can be suppressed by adding 
    android.suppressUnsupportedCompileSdk=34 
to this project's gradle.properties  
The build will continue, but you are strongly encouraged to update your project to 
use a newer Android Gradle Plugin that has been tested with compileSdk = 34 
> Task :preBuild UP-TO-DATE 
> Task :preDebugBuild UP-TO-DATE 
> Task :mergeDebugNativeDebugMetadata NO-SOURCE 
> Task :compileDebugAidl NO-SOURCE  
> Task :compileDebugRenderscript 
The RenderScript APIs are deprecated. They will be removed in Android Gradle plugin 9.0. See the following link for a guide to migrate from RenderScript: https://developer.android.com/guide/topics/renderscript/migrate  
> Task :generateDebugBuildConfig 
> Task :javaPreCompileDebug 
> Task :checkDebugAarMetadata 
> Task :generateDebugResValues 
> Task :mapDebugSourceSetPaths 
> Task :generateDebugResources 
> Task :createDebugCompatibleScreenManifests 
> Task :extractDeepLinksDebug 
> Task :mergeDebugResources  
> Task :processDebugMainManifest 
package="org.qtproject.example.hangman" found in source AndroidManifest.xml: /home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-build/AndroidManifest.xml. 
Setting the namespace via a source AndroidManifest.xml's package attribute is deprecated. 
Please instead set the namespace (or testNamespace) in the module's build.gradle file, as described here: https://developer.android.com/studio/build/configure-app-module#set-namespace 
This migration can be done automatically using the AGP Upgrade Assistant, please refer to https://developer.android.com/studio/build/agp-upgrade-assistant for more information.  
> Task :processDebugManifest 
> Task :mergeDebugShaders 
> Task :compileDebugShaders NO-SOURCE 
> Task :generateDebugAssets UP-TO-DATE 
> Task :mergeDebugAssets 
> Task :compressDebugAssets 
> Task :processDebugJavaRes NO-SOURCE 
> Task :checkDebugDuplicateClasses 
> Task :mergeDebugJavaResource 
> Task :processDebugManifestForPackage 
> Task :mergeLibDexDebug 
> Task :processDebugResources 
> Task :mergeDebugJniLibFolders 
> Task :desugarDebugFileDependencies  
> Task :compileDebugJavaWithJavac FAILED 
/home/qt/RTA/Qt_6.7.0/Examples/Qt-6.7.0/demos/hangman/bld_x86_64/android-build/src/org/qtproject/qt/android/purchasing/InAppPurchase.java:183: error: cannot find symbol 
                            failedProducts.add(queriedProductId); 
                            ^ 
  symbol: variable failedProducts 
1 error  
FAILURE: Build failed with an exception.  
* What went wrong: 
Execution failed for task ':compileDebugJavaWithJavac'. 
> Compilation failed; see the compiler error output for details.  
* Try: 
> Run with --info option to get more log output. 
> Run with --scan to get full insights.  
BUILD FAILED in 6s 
22 actionable tasks: 22 executed 
Building the android package failed! 
  -- For more information, run this command with --verbose. 
ninja: build stopped: subcommand failed.