I have this kind of error after login to vaadin application:
Widgetset ‘towidgetset’ does not contain implementation for com.sun.proxy.$Proxy143. Check its component connector’s @Connect mapping, widgetsets GWT module description file and re-compile your widgetset.
On this specific page I do not use any addon. Error is not showing all the time but it is very random. Sometimes app is running without this error. Vaddin is connected with Spring.
Anybody know how to solve this? Any idea?