Exception using tr

00:40:47.566 [ERROR] 10:43:44 SEVERE [AbstractCreationalContext] error initializing bean: app.client.local.TradeOrderItemWidget
java.lang.IllegalArgumentException: Root Element to visit must not be null. 	at org.jboss.errai.ui.shared.Visit.depthFirst(Visit.java:36) 	at org.jboss.errai.ui.shared.Visit.depthFirst(Visit.java:30) 	at org.jboss.errai.ui.shared.TemplateUtil.getDataFieldElements(TemplateUtil.java:248) 	at org.jboss.errai.ioc.client.BootstrapperImpl$45$1.init(BootstrapperImpl.java:636) 	at org.jboss.errai.ioc.client.BootstrapperImpl$45$1.init(BootstrapperImpl.java:1) 	at org.jboss.errai.ioc.client.container.AbstractCreationalContext.fireAllInitCallbacks(AbstractCreationalContext.java:200) 	at org.jboss.errai.ioc.client.container.SimpleCreationalContext.finish(SimpleCreationalContext.java:177) 	at org.jboss.errai.ioc.client.container.IOCDependentBean.newInstance(IOCDependentBean.java:79) 	at org.jboss.errai.ioc.client.container.SyncToAsyncBeanManagerAdapter$1.newInstance(SyncToAsyncBeanManagerAdapter.java:159) 	at org.jboss.errai.ui.client.widget.ListWidget.init(ListWidget.java:177) 	at org.jboss.errai.ui.client.widget.ListWidget.setItems(ListWidget.java:145) 	at app.client.local.Dashboard.addOpenTradesWidget(Dashboard.java:66) 	at app.client.local.Dashboard.init(Dashboard.java:50) 	at org.jboss.errai.ioc.client.BootstrapperImpl$13.init(BootstrapperImpl.java:317) 	at org.jboss.errai.ioc.client.BootstrapperImpl$13.init(BootstrapperImpl.java:1) 	at org.jboss.errai.ioc.client.container.AbstractCreationalContext.fireAllInitCallbacks(AbstractCreationalContext.java:200) 	at org.jboss.errai.ioc.client.container.SimpleCreationalContext.finish(SimpleCreationalContext.java:177) 	at org.jboss.errai.ioc.client.container.IOCDependentBean.getInstance(IOCDependentBean.java:90) 	at org.jboss.errai.ioc.client.container.SyncToAsyncBeanManagerAdapter$1.getInstance(SyncToAsyncBeanManagerAdapter.java:148) 	at org.jboss.errai.ui.nav.client.local.spi.GeneratedNavigationGraph$3.produceContent(GeneratedNavigationGraph.java:115) 	at org.jboss.errai.ui.nav.client.local.Navigation.maybeShowPage(Navigation.java:288) 	at org.jboss.errai.ui.nav.client.local.Navigation.navigate(Navigation.java:231) 	at org.jboss.errai.ui.nav.client.local.Navigation.access$1(Navigation.java:219) 	at org.jboss.errai.ui.nav.client.local.Navigation$1.onValueChange(Navigation.java:126) 	at com.google.gwt.event.logical.shared.ValueChangeEvent.dispatch(ValueChangeEvent.java:128) 	at com.google.gwt.event.logical.shared.ValueChangeEvent.dispatch(ValueChangeEvent.java:1) 	at com.google.gwt.event.shared.GwtEvent.dispatch(GwtEvent.java:1) 	at com.google.web.bindery.event.shared.EventBus.dispatchEvent(EventBus.java:40) 	at com.google.web.bindery.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:193) 	at com.google.web.bindery.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:88) 	at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:127) 	at com.google.gwt.user.client.impl.HistoryImpl.fireEvent(HistoryImpl.java:80) 	at com.google.gwt.event.logical.shared.ValueChangeEvent.fire(ValueChangeEvent.java:43) 	at com.google.gwt.user.client.impl.HistoryImpl.fireHistoryChangedImpl(HistoryImpl.java:87) 	at com.google.gwt.user.client.History.fireCurrentHistoryState(History.java:131) 	at org.jboss.errai.ui.nav.client.local.Navigation$2.run(Navigation.java:136) 	at org.jboss.errai.common.client.api.extension.InitVotes$OneTimeRunnable.run(InitVotes.java:399) 	at org.jboss.errai.common.client.api.extension.InitVotes._runAllRunnables(InitVotes.java:371) 	at org.jboss.errai.common.client.api.extension.InitVotes._runAllRunnables(InitVotes.java:356) 	at org.jboss.errai.common.client.api.extension.InitVotes.finishInit(InitVotes.java:341) 	at org.jboss.errai.common.client.api.extension.InitVotes.access$3(InitVotes.java:336) 	at org.jboss.errai.common.client.api.extension.InitVotes$1.run(InitVotes.java:185) 	at org.jboss.errai.common.client.api.tasks.ClientTaskManager$ClientAsyncTask.run(ClientTaskManager.java:89) 	at org.jboss.errai.common.client.api.tasks.ClientTaskManager$TaskManagerTimer.run(ClientTaskManager.java:190) 	at com.google.gwt.user.client.Timer.fire(Timer.java:149) 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 	at java.lang.reflect.Method.invoke(Method.java:606) 	at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) 	at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) 	at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172) 	at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:338) 	at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:219) 	at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136) 	at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571) 	at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279) 	at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91) 	at com.google.gwt.core.client.impl.Impl.apply(Impl.java) 	at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:242) 	at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source) 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 	at java.lang.reflect.Method.invoke(Method.java:606) 	at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) 	at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) 	at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172) 	at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293) 	at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547) 	at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364) 	at java.lang.Thread.run(Thread.java:744)