Warning: widgetset version 6.7.1 does not seem to match theme version 6_6_6

[tocer]

run Cacl demo in linux terminal and browse http://localhost:8880/?debug, then I found warning message in degub window:

Drag title=move, shift-drag=resize, doubleclick title=min/max.Use debug=quiet to log only to browser console.
Starting Vaadin client side engine. Widgetset: org.muntiacus.MuntjacWidgetSet
Widget set is built on version: 6.7.1
Warning: widgetset version 6.7.1 does not seem to match theme version 6_6_6
Starting application ROOT-8632804374387502268
Vaadin application servlet version: 1.1.0
Application version: NONVERSIONED
Warning: your widget set seems to be built with a different version than the one used on server. Unexpected behavior may occur.
inserting load indicator
Making UIDL Request with params: init�
Server visit took 46ms
... ...

how to fix it?
ps, muntjac version 1.1.0

[rwl]

This shouldn't cause a problem, but I will leave the issue open. Vaadin is very good at maintaining the stability of their widgetset API. IIRC, Muntjac was based on Vaadin 6.7.3. You might find some issues using a 6.8.x widgetset.