Vaadin - GWT error "module xxx may need to be recompiled

Question

I\'m ramping up on Vaadin and I\'m getting this javascript alert whenever I try and run the demo apps.

GWT module \'com.vaadin.terminal.gwt.DefaultWidgetSet\' ma         


        

Answer 1

Often this message meens:

• you're missing the ?gwt.codesvr=127.0.0.1:9997 parameter in the URL (or have misspelled it).
• your module uses the xs linker . This is a known limitation and will be fixed in the future: Issue 4232: Allow Development Mode to work with XS Linker