Qt Androidnotifier example build fails on Qmake

QMake Build problem:

Building qmake androidnotifier for 0A231JEC217599 with port 5433
Building qmake androidnotifier for D1AGAD1762743231 with port 5434
Building qmake androidnotifier for R5CT922D0KX with port 5435
Building qmake androidnotifier for emulator-5554 with port 5436
Building qmake androidnotifier for emulator-5556 with port 5437
Error: No androidnotifier APK build for emulator-5554
Error: No androidnotifier APK build for emulator-5556
Error: No androidnotifier APK build for R5CT922D0KX
Error: No androidnotifier APK build for 0A231JEC217599
Error: No androidnotifier APK build for D1AGAD1762743231

12:07:26: Initializing deployment to Android device/simulator
12:07:26: Deploying to D1AGAD1762743231
12:07:26: Running steps for project androidnotifier...
12:07:26: Starting: "/home/jani/Qt/6.7.0/android_arm64_v8a/bin/qmake" /home/jani/Qt/Examples/Qt-6.7.0/corelib/platform/androidnotifier/androidnotifier.pro -spec android-clang CONFIG+=debug CONFIG+=qml_debug
12:07:26: The process "/home/jani/Qt/6.7.0/android_arm64_v8a/bin/qmake" exited normally.
12:07:26: Starting: "/home/jani/Android/Sdk/ndk/26.1.10909125/prebuilt/linux-x86_64/bin/make" -f /home/jani/Qt/Examples/Qt-6.7.0/corelib/platform/build-androidnotifier-Android_Qt_6_7_0_Clang_arm64_v8a-Debug/Makefile qmake_all
make: Nothing to be done for 'qmake_all'.
12:07:26: The process "/home/jani/Android/Sdk/ndk/26.1.10909125/prebuilt/linux-x86_64/bin/make" exited normally.
12:07:26: Starting: "/home/jani/Android/Sdk/ndk/26.1.10909125/prebuilt/linux-x86_64/bin/make" -j8
/home/jani/Android/Sdk/ndk/26.1.10909125/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -c -target aarch64-linux-android23 -fno-limit-debug-info -fPIC -fstack-protector-strong -DANDROID -g -Wall -W -D_REENTRANT -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../androidnotifier -I. -I/home/jani/Qt/6.7.0/android_arm64_v8a/include -I/home/jani/Qt/6.7.0/android_arm64_v8a/include/QtWidgets -I/home/jani/Qt/6.7.0/android_arm64_v8a/include/QtGui -I/home/jani/Qt/6.7.0/android_arm64_v8a/include/QtCore -I. -I/home/jani/Qt/6.7.0/android_arm64_v8a/mkspecs/android-clang -o notificationclient.o ../androidnotifier/notificationclient.cpp
../androidnotifier/notificationclient.cpp:8:10: fatal error: 'QtCore/private/qandroidextras_p.h' file not found
#include <QtCore/private/qandroidextras_p.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make: *** [Makefile:1343: notificationclient.o] Error 1
12:07:27: The process "/home/jani/Android/Sdk/ndk/26.1.10909125/prebuilt/linux-x86_64/bin/make" exited with code 2.
Error while building/deploying project androidnotifier (kit: Android Qt 6.7.0 Clang arm64-v8a)
When executing step "Make"
12:07:27: Elapsed time: 00:01.