Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError): Object [object Object] has no method 'push'
and at com.gwtext.client.widgets.Container.addPreCreate(Container.java) at com.gwtext.client.widgets.Container.add(Container.java:202) at com.gwtext.client.widgets.Container.add(Container.java:144) indicates that GWT-EXT trys to call a method "push" on a javascript object that does not provide this method. This is done somewhere in com.gwtext.client.widgets.Container.addPreCreate(). I don't know GWT-EXT but maybe you have some old libraries of GWT-Ext or missed to initialize some GWT-EXT specific stuff? -- J. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/G3uMesAPHI4J. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.