I-m using vaadin 7.7.6 and recently, I also experienced error : "java.lang

Directory ConfirmDialog
1

I-m using vaadin 7.7.6 and recently, I also experienced error :
“java.lang.NoSuchMethodError: org.vaadin.dialogs.ConfirmDialog.addCloseListener(Lcom/vaadin/ui/Window$CloseListener;)Lcom/vaadin/shared/Registration”