'Unable to handle unregistered datatype' when trying to use QVector in Repeater

snkaupe

I'm trying to get a list of Channel objects to do something with them in a QML Repeater, but only get the following error message when trying to access the relevant property (actual namespace names replaced):

QMetaProperty::read: Unable to handle unregistered datatype 'QVector<ns1::ns2::Channel*>' for property 'ns1::ns2::Room::channels'

Now, the types Channel and Room are both registered to the QML engine, as well as a corresponding evocation of qRegisterMetaType for their pointer derivatives:

qRegisterMetaType<Channel*>("Channel*");
qRegisterMetaType<Room*>("Room*");
//...
qmlRegisterUncreatableType<Channel>("ns", 1, 0, "Channel", "const");
qmlRegisterUncreatableType<Room>("ns", 1, 0, "Room", "const");

Room and Channel both inherit from QObject (through a number of other types). Room has the property I'm trying to access:

class Room : public QObject {
  // ...
  Q_PROPERTY(QVector<ns1::ns2::Channel*> channels READ channelReferences NOTIFY channelReferencesChanged)
  // ...
  Q_INVOKABLE QVector<ns1::ns2Channel*>& channelReferences() { return m_channels; }
  // ...
signals:
  void channelReferencesChanged();
  // ...
private:
  QVector<Channel*> m_channels;
}

I then try to access said property from QML:

Repeater {
    model: parent.controller.room.channels // parent.controller is a different class, its 'room' property returns a Room*
    delegate: RoundButton {
        radius: 5
        text: "foo"
    }
}

I cannot find anything that is missing in order to use the C++ objects on the QML side. In fact, I'm doing something very similar with a different class and it works quite nicely.