Dock panel problem

Hi
I have a problem with Dock panels
I have updated my main form according to this
https://docs.devexpress.com/eXpressAppFramework/112618/task-based-help/templates/how-to-create-a-custom-winforms-ribbon-template
and I have implemented this
Implements IDockManagerHolder

Public ReadOnly Property DockManager As DockManager Implements IDockManagerHolder.DockManager
Get
Dim DM As New DockManager
DM.DockingOptions.ShowCaptionImage = True
DM.Form = Me
DM.TopZIndexControls.AddRange(New String() {"DevExpress.XtraBars.BarDockControl", "DevExpress.XtraBars.StandaloneBarDockControl", "System.Windows.Forms.StatusBar", "DevExpress.XtraBars.Ribbon.RibbonStatusBar", "DevExpress.XtraBars.Ribbon.RibbonControl"})
Return DM
End Get
End Property
But I get this error when I open any view
System.InvalidOperationException: BarItem of the "
DevExpress.ExpressApp.Win.Templates.ActionContainers.ActionContainerBarItem"
type is expected, but was
"DevExpress.XtraBars.BarLinkContainerItem". It seems that the new template type
(Obaid.Module.Win.TabbedMDIDetailViewForm) is used for the Detail Form while for the Main Form a template of the old type
(DevExpress.ExpressApp.Win.Templates.MainForm) is used. To avoid this error, use templates of the same types only. Refer to http://documentation.devexpress.com/#Xaf/CustomDocument2618 for more details.
at DevExpress.ExpressApp.Win.Templates.ActionContainers.ClassicToRibbonTransformer.OnMergeRibbon(RibbonMergeEventArgs e)
at DevExpress.ExpressApp.Win.Templates.ActionContainers.ClassicToRibbonTransformer.ribbon_Merge(Object sender, RibbonMergeEventArgs e)
at DevExpress.XtraBars.Ribbon.RibbonMergeEventHandler.Invoke(Object sender, RibbonMergeEventArgs e)
at DevExpress.XtraBars.Ribbon.RibbonControl.RaiseMerge(RibbonMergeEventArgs e)
at DevExpress.XtraBars.Ribbon.RibbonControl.MergeRibbon(RibbonControl ribbon, DefaultBoolean hideChildRibbon)
at DevExpress.XtraBars.Ribbon.RibbonControl.MergeRibbon(RibbonControl ribbon)
at DevExpress.XtraBars.Ribbon.RibbonControl.OnMdiChildActivate(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnMdiChildActivate(EventArgs e)
at DevExpress.XtraEditors.XtraForm.OnMdiChildActivate(EventArgs e)
at System.Windows.Forms.Form.ActivateMdiChildInternal(Form form)
at System.Windows.Forms.Form.WmMdiActivate(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at DevExpress.XtraEditors.DForm.WndProc(Message& m)
at DevExpress.XtraEditors.XtraForm.WndProc(Message& msg)
at DevExpress.XtraBars.Ribbon.RibbonForm.WndProc(Message& msg)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

please can you help

Kind Regards,