Hi all,

I am new to WSO2 and trying to go through sample Shopping Cart. I followed the 
direction from 


wso2-carbon-studio-1.0.2.1-docs/shopping-cart-sample.html

but got an error when I imported data 
source:shopping-cart/data-service/dbs/SHoppingCartDS.dbs

the details of the error message is as follows:

org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException:
 
org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 'returnRowId' not 
found. 
(platform:/resource/AcmeBackendServices/artifacts/ShoppingCartDS/ShoppingCartDS.dbs,
 286, 75)
    at 
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315)

    at 
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)

    at 
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397)

    at 
org.wso2.carbonstudio.eclipse.ds.presentation.DsEditor.createModel(Unknown 
Source)
    at 
org.wso2.carbonstudio.eclipse.ds.presentation.DsEditor.createPages(Unknown 
Source)
    at 
org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:348)

    at 
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670)

    at 
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
    at 
org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)

    at 
org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
    at 
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863)

    at 
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
    at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2674)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:683)
    at 
org.wso2.carbonstudio.eclipse.capp.project.manager.CAppArtifactManager.createArtifact(Unknown
 Source)
    at 
org.wso2.carbonstudio.eclipse.capp.project.manager.CAppArtifactManager.createArtifact(Unknown
 Source)
    at 
org.wso2.carbonstudio.eclipse.capp.artifact.dataservice.ui.wizard.NewDataServiceArtifactWizard.performFinish(Unknown
 Source)
    at 
org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:811)
    at 
org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:430)
    at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
    at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
    at org.eclipse.jface.window.Window.open(Window.java:801)
    at 
org.wso2.carbonstudio.eclipse.capp.project.ui.editor.ArtifactEditorPage$7.widgetSelected(Unknown
 Source)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
    at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at 
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)

    at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)

    at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)

    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
    at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
Caused by: org.eclipse.emf.ecore.xmi.FeatureNotFoundException: Feature 
'returnRowId' not found. 
(platform:/resource/AcmeBackendServices/artifacts/ShoppingCartDS/ShoppingCartDS.dbs,
 286, 75)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.reportUnknownFeature(XMLHandler.java:1991)

    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleUnknownFeature(XMLHandler.java:1955)

    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.setAttribValue(XMLHandler.java:2709)
    at 
org.eclipse.emf.ecore.xmi.impl.SAXXMLHandler.handleObjectAttribs(SAXXMLHandler.java:83)

    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFactory(XMLHandler.java:2193)

    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFeatureType(XMLHandler.java:2159)

    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:2035)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1814)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1023)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1001)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:712)
    at 
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
 Source)
    at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
 Source)
    at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown
 Source)
    at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown 
Source)
    at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
 Source)
    at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
Source)
    at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown 
Source)
    at 
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown 
Source)
    at 
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
 Source)
    at javax.xml.parsers.SAXParser.parse(Unknown Source)
    at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:181)
    at 
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:180)
    at 
org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1494)
    at 
org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1282)
    at 
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:255)

    at 
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:270)

    ... 56 more


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