Train in adf

Question

I created a bounded task flow with a train and page fragments. I get this error in the log
<TrainRenderer> <encodeAll> Either a MenuModel object was not provided or an invalid object was provided.
<af:train var="node" value="#{controllerContext.currentViewPort.taskFlowContext.trainModel}">
<f:facet name="nodeStamp">
<af:commandNavigationItem text="#{node.label}"
actionListener="#{node.doActionListener}"
immediate="#{controllerContext.currentViewPort.taskFlowContext.trainModel.immediate}"
disabled="#{controllerContext.currentViewPort.taskFlowContext.trainModel.readOnly}"
visited="#{controllerContext.currentViewPort.taskFlowContext.trainModel.visited}"
id="commandNavigationItem"/>
</f:facet>
</af:train>

Answer 1

Hi Frank,
Thanks for your response. this is what i have:
<?xml version="1.0" encoding="windows-1252" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
<task-flow-definition id="trainModel-task-flow-definition">
<default-activity>facilitiesInformation</default-activity>
<view id="facilitiesInformation">
<page>/facilitiesInformation.jsff</page>
<train-stop>
<display-name>Facility Information</display-name>
</train-stop>
</view>
<view id="iSatServicesTab">
<page>/iSatServicesTab.jsff</page>
<train-stop>
<display-name></display-name>
</train-stop>
</view>
<view id="directorTab">
<page>/directorTab.jsff</page>
<train-stop>
<display-name></display-name>
</train-stop>
</view>
<view id="emailTab">
<page>/emailTab.jsff</page>
<train-stop>
<display-name></display-name>
</train-stop>
</view>
<task-flow-return id="taskFlowReturn1">
<display-name>Return</display-name>
<outcome>
<name>taskFlowReturn1</name>
</outcome>
</task-flow-return>
<train/>
<control-flow-rule id="__1">
<from-activity-id>emailTab</from-activity-id>
<control-flow-case id="__2">
<from-outcome>Return</from-outcome>
<to-activity-id>taskFlowReturn1</to-activity-id>
</control-flow-case>
</control-flow-rule>
<use-page-fragments/>
</task-flow-definition>
</adfc-config>
what do i need to do in addition to this?
veena