java.lang.NullPointerException
        at org.netbeans.modules.visualweb.insync.markup.MarkupUnit.getBase(MarkupUnit.java:832)
        at org.netbeans.modules.visualweb.insync.markup.MarkupUnit.initRenderedDocument(MarkupUnit.java:740)
        at org.netbeans.modules.visualweb.insync.markup.MarkupUnit.getRenderedDom(MarkupUnit.java:729)
        at org.netbeans.modules.visualweb.insync.models.FacesModel.getHtmlDom(FacesModel.java:1578)
        at org.netbeans.modules.visualweb.insync.models.FacesModel.refresh(FacesModel.java:1796)
        at org.netbeans.modules.visualweb.insync.models.FacesModelSet$2.stateChanged(FacesModelSet.java:427)
        at org.netbeans.modules.visualweb.insync.models.ProjectBuiltQuery$StatusImpl.fireChange(ProjectBuiltQuery.java:274)
        at org.netbeans.modules.visualweb.insync.models.ProjectBuiltQuery$StatusImpl.update(ProjectBuiltQuery.java:364)
        at org.netbeans.modules.visualweb.insync.models.ProjectBuiltQuery$StatusImpl.access$100(ProjectBuiltQuery.java:143)
        at org.netbeans.modules.visualweb.insync.models.ProjectBuiltQuery$StatusImpl$FileObjectStatusChangeListener.stateChanged(ProjectBuiltQuery.java:172)
        at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:123)
        at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:109)
        at org.netbeans.spi.project.support.ant.GlobFileBuiltQuery$StatusImpl.isBuilt(GlobFileBuiltQuery.java:254)
        at org.netbeans.spi.project.support.ant.GlobFileBuiltQuery$StatusImpl.run(GlobFileBuiltQuery.java:303)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)