Hi,
I looked at your compile report again. You should probably define the application widgetset for you UI, instead of using the precompiled default widgetset. For some reason the toolset has failed to add that to your app. It can be done in web.xml or with annotation to UI class, eg. :
@Widgetset("com.xinqi100.lps.widgetset.LpsWidgetset")
public class VaadinUI extends UI {The ticket is still somewhat valid. Even if the license would be required nowadays, a valid error should be shown instead of just hanging the build.
cheers,
matti