Error: base class has incomplete type class XXXXX : public QObject

 In file included from /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:40:
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview_p.h:62:37: error: base class has incomplete type
agent:2022/03/24 03:36:30 build.go:394: class AndroidSurfaceHolder : public QObject
agent:2022/03/24 03:36:30 build.go:394:                              ~~~~~~~^~~~~~~
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qscopedpointer.h:101:7: note: forward declaration of 'QObject'
agent:2022/03/24 03:36:30 build.go:394: class QObject;
agent:2022/03/24 03:36:30 build.go:394:       ^
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:40:
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview_p.h:88:35: error: base class has incomplete type
agent:2022/03/24 03:36:30 build.go:394: class AndroidSurfaceView : public QObject
agent:2022/03/24 03:36:30 build.go:394:                            ~~~~~~~^~~~~~~
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qscopedpointer.h:101:7: note: forward declaration of 'QObject'
agent:2022/03/24 03:36:30 build.go:394: class QObject;
agent:2022/03/24 03:36:30 build.go:394:       ^
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:145:9: error: use of undeclared identifier 'connect'; did you mean 'QEventLoop::connect'?
agent:2022/03/24 03:36:30 build.go:394:         connect(m_surfaceHolder, &AndroidSurfaceHolder::surfaceCreated,
agent:2022/03/24 03:36:30 build.go:394:         ^~~~~~~
agent:2022/03/24 03:36:30 build.go:394:         QEventLoop::connect
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobject.h:241:43: note: 'QEventLoop::connect' declared here
agent:2022/03/24 03:36:30 build.go:394:     static inline QMetaObject::Connection connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal,
agent:2022/03/24 03:36:30 build.go:394:                                           ^
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:161:5: warning: delete called on non-final 'AndroidSurfaceHolder' that has virtual functions but non-virtual destructor [-Wdelete-non-abstract-non-virtual-dtor]
agent:2022/03/24 03:36:30 build.go:394:     delete m_surfaceHolder;
agent:2022/03/24 03:36:30 build.go:394:     ^
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:42:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qcoreapplication.h:47:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qeventloop.h:43:
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobject.h:263:28: error: cannot initialize a parameter of type 'const QObject *' with an lvalue of type 'const typename QtPrivate::FunctionPointer<void (AndroidSurfaceHolder::*)()>::Object *' (aka 'const AndroidSurfaceHolder *')
agent:2022/03/24 03:36:30 build.go:394:         return connectImpl(sender, reinterpret_cast<void **>(&signal),
agent:2022/03/24 03:36:30 build.go:394:                            ^~~~~~
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:145:9: note: in instantiation of function template specialization 'QObject::connect<void (AndroidSurfaceHolder::*)(), void (AndroidSurfaceView::*)()>' requested here
agent:2022/03/24 03:36:30 build.go:394:         connect(m_surfaceHolder, &AndroidSurfaceHolder::surfaceCreated,
agent:2022/03/24 03:36:30 build.go:394:         ^
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobject.h:462:63: note: passing argument to parameter 'sender' here
agent:2022/03/24 03:36:30 build.go:394:     static QMetaObject::Connection connectImpl(const QObject *sender, void **signal,
agent:2022/03/24 03:36:30 build.go:394:                                                               ^
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:40:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview_p.h:54:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qjniobject.h:43:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qsharedpointer.h:48:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qsharedpointer_impl.h:66:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qmetatype.h:53:
agent:2022/03/24 03:36:30 build.go:394: In file included from /home/qt/work/install/target/include/QtCore/qobjectdefs.h:49:
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobjectdefs_impl.h:419:94: error: static_cast from 'QObject *' to 'typename FuncType::Object *' (aka 'AndroidSurfaceView *'), which are not related by inheritance, is not allowed
agent:2022/03/24 03:36:30 build.go:394:                 FuncType::template call<Args, R>(static_cast<QSlotObject*>(this_)->function, static_cast<typename FuncType::Object *>(r), a);
agent:2022/03/24 03:36:30 build.go:394:                                                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobjectdefs_impl.h:428:57: note: in instantiation of member function 'QtPrivate::QSlotObject<void (AndroidSurfaceView::*)(), QtPrivate::List<>, void>::impl' requested here
agent:2022/03/24 03:36:30 build.go:394:         explicit QSlotObject(Func f) : QSlotObjectBase(&impl), function(f) {}
agent:2022/03/24 03:36:30 build.go:394:                                                         ^
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/install/target/include/QtCore/qobject.h:265:32: note: in instantiation of member function 'QtPrivate::QSlotObject<void (AndroidSurfaceView::*)(), QtPrivate::List<>, void>::QSlotObject' requested here
agent:2022/03/24 03:36:30 build.go:394:                            new QtPrivate::QSlotObject<Func2, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotType::ArgumentCount>::Value,
agent:2022/03/24 03:36:30 build.go:394:                                ^
agent:2022/03/24 03:36:30 build.go:394: /home/qt/work/qt/qtmultimedia/src/plugins/multimedia/android/wrappers/jni/androidsurfaceview.cpp:145:9: note: in instantiation of function template specialization 'QObject::connect<void (AndroidSurfaceHolder::*)(), void (AndroidSurfaceView::*)()>' requested here
agent:2022/03/24 03:36:30 build.go:394:         connect(m_surfaceHolder, &AndroidSurfaceHolder::surfaceCreated,
agent:2022/03/24 03:36:30 build.go:394:         ^
agent:2022/03/24 03:36:30 build.go:394: 1 warning and 5 errors generated.