Move listitem in SharePoint 2013 hosted Apps

Hi,

I try to creating a SharePoint 2013 Hosted app that get a selected listitem and move it to another folder of library in the same web.
When I debug my code everything runs without any error. The only problem that I have is that the ‘File.moveTo(destinationUrl,true);’ command not works in the ‘context.executeQueryAsync’ function.

I hope that someone can help me further with this.
This is my move function:

function moveListItem() {

   SP.SOD.executeFunc('sp.js','SP.ClientContext', getUrl);

   function getUrl() {

       var scriptbase = hostweburl +"/_layouts/15/";

       $.getScript(scriptbase + "SP.Runtime.js",

           function () {

               $.getScript(scriptbase + "SP.js",

               function () { $.getScript(scriptbase +"SP.RequestExecutor.js", execOperation); }

               );

           }

       );

   }

}

function execOperation() {

   // Load current Web

   context = new SP.ClientContext(appweburl);

   var factory =new SP.ProxyWebRequestExecutorFactory(appweburl);

   context.set_webRequestExecutorFactory(factory);

   appContextSite = new SP.AppContextSite(context, hostweburl);

   web = appContextSite.get_web();

   context.load(web);

   // Load source list

   list = web.get_lists().getById(selectedListID);

   context.load(list);

   //load source listitem

   sourceItem = list.getItemById(selectedItemID);

   context.load(sourceItem);

   var File = sourceItem.get_file();

   context.load(File);

   context.executeQueryAsync(function (sender, args) {

       if (File !=null) {

           var bibName = document.getElementById('biburl').value;

           var fileName = File.get_name();

           var destinationUrl = hostweburl + bibName + fileName;

           File.moveTo(destinationUrl, true);

       }

   });

}

Thanks in advance,

Johan