     /**
      *  @private
      */
-    private var _source:Vector.<ViewProxy>;
+    private var _source:Vector.<ViewDescriptor>;
     
     /**
      *  @private

     *  @playerversion AIR 2.5
     *  @productversion Flex 4.5
     */ 
    mx_internal function get source():Vector.<ViewProxy>
    {
        return _source;
    }

import flash.utils.IDataOutput;
import flash.utils.IExternalizable;

import spark.components.supportClasses.ViewDescriptor;

import mx.core.mx_internal;
use namespace mx_internal;
