Uncaught TypeError: Cannot read property 'getTime' of undefined about fileuploader HOT 6 CLOSED

upload: {
          url: 'create-listing/images-upload/fileuploader',
          data: null,
          type: 'POST',
          enctype: 'multipart/form-data',
          start: true,
          synchron: true,            
          onSuccess: function(data, item, listEl, parentEl, newInputEl, inputEl, textStatus, jqXHR) {
              item.html.find('.fileuploader-action-remove').addClass('fileuploader-action-success');
              console.log(data);
              // alert(data.success);

              setTimeout(function() {
  	            item.html.find('.progress-bar2').fadeOut(400);
  	        }, 400);
          },

$FileUploader = new FileUploader('files', array(
          // options
          'limit' => null,
          'uploadDir' => storage_path('app/public/images'),
          'title' => 'name'
        ));

        // upload
        $upload = $FileUploader->upload();

        return response()->json(['success' => $upload]);

TypeError: c is undefined jquery.fileuploader.min.js:8:44044
    jQuery 6
        progressHandling
        success
        u
        fireWith
        k
        n