Ticket4607
open | /run/com.vaadin.tests.components.ui.TestUIWidgetset |
assertText | vaadin=runcomvaadintestscomponentsuiTestUIWidgetset::/VVerticalLayout[0]/VVerticalLayout[0]/VLabel[0] | This component is available in TestingWidgetset, but not in DefaultWidgetset
open | /run/com.vaadin.tests.components.ui.TestUIWidgetset2 |

assertText

vaadin=runcomvaadintestscomponentsuiTestUIWidgetset2::/VVerticalLayout[0]/VVerticalLayout[0]/VUnknownComponent[0]/domChild[0]/domChild[0]/domChild[0]/domChild[0]

Widgetset does not contain implementation for com.vaadin.tests.widgetset.server.MissingFromDefaultWidgetsetComponent. Check its component connector's @Connect mapping, widgetsets GWT module description file and re-compile your widgetset. In case you have downloaded a vaadin add-on package, you might want to refer to add-on instructions.