Binding loop detected for property "foreground"

Question

My application is running very well inside Ubuntu operational system. But when I try to run it inside the Yocto using Boot2Qt it throws the following error message:

QML ToolBar (parent or ancestor of Material): Binding loop detected for property "foreground"

Here is a spinet of my code that throws this error.

 Page{
    id: mainPage
    anchors.fill: parent
    visible:  true
    header: ToolBar{id: toolBarHeader
        parent: mainPage
        height: root.toolBarHeight
        anchors.left: parent.left
        anchors.top: parent.top
        anchors.right: parent.right
        anchors.topMargin: 0
        anchors.leftMargin: 0
        Material.background: Material.color(Material.BlueGrey, functionsJS.toolBarIntensity())

Here is the result that I'm getting: nasty application response:

Trying to figure out what is going on. I've done this:

 Page{
    id: mainPage
    anchors.fill: parent
    visible:  true
    header: ToolBar{id: toolBarHeader
        parent: mainPage
        height: root.toolBarHeight
        anchors.left: parent.left
        anchors.top: parent.top
        anchors.right: parent.right
        anchors.topMargin: 0
        anchors.leftMargin: 0
        background: Rectangle{anchors.fill: parent; color: "red"}}

End now, I'm getting this: Maybe problem with material?: