sutanu - 2014-02-14

I am trying to use GWT highcharts with GWT 2.6. I have done the setup as described in the developer guide. However on launching I am always facing this error.

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com.google.gwt.core.client.JavaScriptException: (TypeError) @org.moxieapps.gwt.highcharts.client.BaseChart::nativeRenderChart(Ljava/lang/String;Lcom/google/gwt/core/client/JavaScriptObject;ZZLcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;Lcom/google/gwt/core/client/JavaScriptObject;)([string: 'Chart', JavaScript object(12), bool: true, bool: false, JavaScript object(38), JavaScript object(39), JavaScript object(40), JavaScript object(29), JavaScript object(34), JavaScript object(28), JavaScript object(32), JavaScript object(33), JavaScript object(36), JavaScript object(37)]): Object.extend is not a function
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:249)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:576)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:284)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at org.moxieapps.gwt.highcharts.client.BaseChart.nativeRenderChart(BaseChart.java)
at org.moxieapps.gwt.highcharts.client.BaseChart.onLoad(BaseChart.java:2032)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:359)
at com.google.gwt.user.client.ui.Widget.setParent(Widget.java:484)
at com.google.gwt.user.client.ui.Panel.adopt(Panel.java:124)
at com.google.gwt.user.client.ui.ComplexPanel.add(ComplexPanel.java:105)
at com.google.gwt.user.client.ui.AbsolutePanel.add(AbsolutePanel.java:97)

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Can someone please share if s/he has faced similar issues? It seems I am missing something silly, but unable to figure it out.

Thanks