Issue with import in QtQuick 2.0

import QmlProject 1.1

Project {
    mainFile: "frontend.qml"

    QmlFiles {
        directory: "."
    }
    JavaScriptFiles {
        directory: "."
    }
    ImageFiles {
        directory: "."
    }
}

// ---------------------

import QtQuick 2.0

Rectangle {
    id: container
    width: 1080
    height: 700

    state: "selectSite"

    states: [
        State {
            name: "selectSite"
        }
    ]

    gradient: Gradient {
        GradientStop {
            position: 0
            color: "#38466b"
        }

        GradientStop {
            position: 1
            color: "#afbad7"
        }
    }

    btnSite { id:tab1 }

}

// ---------------------

import QtQuick 2.0

Rectangle {
    id: container
    width: 200
    height: 45
    color: "#201616"

    Text {
        id: text1
        width: 24
        height: 16
        color: "#ead9d9"
        text: qsTr("Text")
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.verticalCenter: parent.verticalCenter
        horizontalAlignment: Text.AlignHCenter
        font.pixelSize: 14
    }
}

// ---------------------