Create dinamic HorizontalGutter

Hello I'm creating the following HorizontalGutter dinamicly and I have
the exception: ( java.lang.ClassCastException )
          IWDHorizontalGutter gut =
               (IWDHorizontalGutter) view.createElement(
                    IWDHorizontalGutter.class,
                    "Gutter1" + index);
Does anybody know what is left?
Thanks in advance!

//@@begin javadoc:createUIeleOrg()
     /** Declared method. */
//@@end
public void createUIeleOrg( int index, com.sap.tc.webdynpro.progmodel.api.IWDView view, comp.diageo.sims.wdp.IPrivateSearchPage.IOrganisationElement ele )
    //@@begin createUIeleOrg()
          IWDTransparentContainer org =
               (IWDTransparentContainer) view.createElement(
                    IWDTransparentContainer.class,
                    SimsConstants.c_torg + index);
          org.createLayout(IWDGridLayout.class);
          IWDLinkToAction lto =
               (IWDLinkToAction) view.createElement(
                    IWDLinkToAction.class,
                    SimsConstants.c_lto + index);
          IWDAction linkAction =
               wdThis.wdCreateAction(
                    IPrivateSearchPage.WDActionEventHandler.TO_ORG_DETAILS,
                    c_blank);
          lto.setOnAction(linkAction);
          lto.mappingOfOnAction().addParameter(
               SimsConstants.c_orgid,
               ele.getOrgID());
          IWDCaption lab =
               (IWDCaption) view.createElement(
                    IWDLabel.class,
                    SimsConstants.c_lb1 + index);
          IWDCaption lab2 =
               (IWDCaption) view.createElement(
                    IWDCaption.class,
                    SimsConstants.c_lb2 + index);
          IWDCaption lab3 =
               (IWDCaption) view.createElement(
                    IWDCaption.class,
                    SimsConstants.c_lb3 + index);
          IWDHorizontalGutter gut =
               (IWDHorizontalGutter) view.createElement(
                    IWDHorizontalGutter.class,
                    SimsConstants.c_gut + index);
          lto.setText(SimsConstants.c_title + ele.getOrgName());
          lab.setText(SimsConstants.c_address + ele.getOrgAddress());
          lab2.setText(SimsConstants.c_showner + ele.getOrgOwner());
          lab3.setText(SimsConstants.c_comment + ele.getOrgNotes());
          org.addChild(lto);
          org.addChild(lab);
          org.addChild(lab2);
          org.addChild(lab3);
          org.addChild(gut);
          IWDTransparentContainer tc =
               (IWDTransparentContainer) view.getElement(SimsConstants.c_transorg);
          tc.addChild(org, index);
    //@@end
The code before insert the Gutter part was working, only after insert the part corresponding to the gutter, an exception is raised.

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