Eupload breaks the widgetset compilation in 7.6.1

I uploaded to 7.6.1 but Eupload breaks compilation of the widgetset.
I was forced to get back to standard Upload.
Could someone help ?
Tks

Add-on page have comments that seem to confirm it is indeed broken in latest version of Vaadin. Let’s hope that the author finds time to fix his/her add-on.