EasyUploads out of sync

Vaadin 6 / 7 / 8 Framework UI
1

Hi to all.
For a my simple Application (Vaadin 6.8.6) developed as Liferay Portlet I’ve written a Form code comprehensive of a org.vaadin.easyuploads.UploadField.
The Field works good using Liferay 6.1.1 but not with Liferay 6.1.0 (I’m obligated to use).
The problem is that when I choose a file from local filesystem it doesn’t go to server.
Besides, I’ve created another portlet with the
EasyUploads Example Application
 and the result is an Out Of Sync Error when I try an upload by every type of Field Type and Storage Mode.

Any suggest?
Can be useful the
Refresher
 addon? If yes, in which way?

Thanks in advance

2

Solved.
I was compiling my code by a newer Vaadin version.
Using the vaadin.jar integrated in Liferay 6.1.0 (6.4.10 version of Vaadin) the out of sync problems are disappeared.