qqmlmetatype.cpp: bad warnings

I'm in the process of getting my qskinny project running with Qt6. Qt has been build in debug mode !

When exposing Q_GADGET types to Qml I have f.e the following warning: "checkRegistration: Invalid QML element name "SizePolicy"; value type names should begin with a lowercase letter".

However the code runs fine without the "", while it does not work when adding a "" prefix like requested from qqmlmetatype.cpp. The same is for all of my Q_GADGETS.

My class Definitions looks like this:

class QskSizePolicy
{{{}}
     Q_GADGET      ...};
 

class QskControl : public QQuickItem

Unknown macro: {     Q_OBJECT    Q_PROPERTY( QskSizePolicy sizePolicy READ sizePolicy WRITE setSizePolicy )}

;

see

https://github.com/uwerat/qskinny/blob/master/src/common/QskSizePolicy.h

https://github.com/uwerat/qskinny/blob/master/src/controls/QskControl.h

The code for registration is then:

}}{{}}{{ qRegisterMetaType< QskSizePolicy >();
{{ qmlRegisterUncreatableType< QskSizePolicy >( "Skinny", 1, 0, "SizePolicy", QString() );}}

see https://github.com/uwerat/qskinny/blob/master/qmlexport/QskQml.cpp

( Code on github does not yet build with Qt6 )