ListView model binding to QAbstractListModel

I am unable to make my class derived from QAbstractListModel working with qml ListView.

Situation looks like this:

I have created ButtonMenu QML element:

Code:

---

Rectangle {
id: menuRoot
...
property Component model
...

---

In this element I have another one and in this another one I have ListView element

Code:

---

Rectangle {
        id: menu
        ...
        ListView {
            id: menuList
            ...
            model: menuRoot.model;
            ...

---

Now when I create ButtonMenu element I have something like this:

Code:

---

ButtonMenu {
           id: buttonMenu
           ...
           model: menuMainViewArea
           ...

---

In C++ I do this:

Code:

---

ctxt->setContextProperty("menuMainViewArea",engine.getMenuMainViewArea());

---

When I run my program i get following error:
Error: Cannot assign QObject* to QDeclarativeComponent*

I tried to make model in menuRoot an alias to menuList model but when I called model.count when setting size of all rectangles I got model.count undefined.

Does anyone know what can be wrong??

Discussion and solution to this issue are presented in this post