Custom ListView Alloy.Abstract.createTemplate error

Hi.

I'm trying to create a custom listview component but i get the following error:

"'undefined' is not an object (evaluating 'Alloy.Abstract.createTemplates')";

Anybody got an idea of what i am doing wrong?

My customListView.js file:

exports.createCustomListView = function(args) {
    var listView = Ti.UI.createListView(args);
    return listView;
};

<Alloy>
    <CustomWindow id="logbookWindow" ns="require('common/customWindow')" class="container">
        <CustomListView id="meterLogList" ns="require('common/customListView')" onItemclick="logClicked" onDelete="deleteEntry">
            <Templates>
                <ItemTemplate name="meterLogTemplate" id="meterLogTemplate">
                    <Label bindId="timeStamp" id="logTimestamp"/>
                    <Label bindId="value" id="logValue"/>
                </ItemTemplate>
                <ItemTemplate name="meterLogHeaderTemplate" id="meterLogHeaderTemplate">
                    <Label bindId="timeStampHeader" id="logTimestampHeader"/>
                    <Label bindId="valueHeader" id="logValueHeader"/>
                </ItemTemplate>
                <ItemTemplate name="addNewMeterLogItemTemlate" id="addNewMeterLogItemTemlate">
                    <ImageView id="addNewImage"/>
                    <Label bindId="addNewItemLabel" id="addNewItemLabel"/>
                </ItemTemplate>
            </Templates>
            <ListSection id="addNewMeterLogSection">
            </ListSection>
            <ListSection id="meterLogSection">
            </ListSection>
        </CustomListView>
    </CustomWindow>
</Alloy>