Problem creating simple listView

Hi,

I'm making a small app and I'm trying to show datas in a listview, following the listviews overview documentation, but i always get this error :

[ERROR] :  XMLModule: (KrollRuntimeThread) [12,14305] Error parsing XML
[ERROR] :  XMLModule: org.xml.sax.SAXParseException: Unexpected token (position:TEXT {@1:2 in java.io.InputStreamReader@410333a8)

Here's my js file :

var plainTemplate = {
        childTemplates: [
            {
                type: 'Ti.UI.Label', // Use a label
                bindId: 'rowtitle',  // Bind ID for this label
                properties: {        // Sets the Label.left property
                    left: '10dp'
                }
            }
        ]
    };  
 
    var communitiesItems = [];
 
        communitiesItems.push({
            rowtitle : { text : "test"},
            properties : {
                itemId: 'row0',
                accessoryType: Ti.UI.LIST_ACCESSORY_TYPE_NONE
            }
        });
 
    var sectionCommunities = Ti.UI.createListSection({
        // properties
        items: communitiesItems
    });
 
    var listView = Ti.UI.createListView({
        sections: [sectionCommunities],
        headerTitle: "Mes communautés",
            templates: { 'plain': plainTemplate },
            defaultItemTemplate: 'plain' 
    });
 
    $.myCommunitiesWindow.add(listView);

and my "mycommunities.xml" file :

<Alloy>
    <Window class="container" id="myCommunitiesWindow">
    </Window>
</Alloy>

the "mycommunity" window is opened with :

var cont = Alloy.createController('mycommunities').getView();
    cont.open();

I don't understand the error. Am I making a mistake in the listview construction ?

Thx

Titanium 3.4, testing on an Android 4.0.4 phone