Package number is not defined there and error in the code

[XiaoGuo, Liu]

on the page: https://developer.ubuntu.com/api/apps/qml/sdk-15.04.1/Ubuntu.Components.Themes.Palette/

import Ubuntu.Components.Themes .

version is not clear on the page, and at the meantime:

Item {
    Rectangle {
        color: theme.palette.normal.base
    }
    Text {
        color: theme.palette.normal.baseText
    }
}

In the above code, "theme" should be "Theme".