[flexcoders] Error when adding RTE toolbar to other container

[lanekelly5]

I'm trying to use the trick where you remove the toolbar from a 
RichTextEditor and add it elsewhere.  Ideally I'd like to have a 
single static toolbar that interacts with the TextArea that has 
focus, but I haven't figured out how to do that yet.

Anyway, below is the code I use to add the RichTextArea to the 
selected child in a ViewStack, then I try to add the toolbar child of 
that RTE to another HBox container textControls.  Note that this HBox 
container is NOT inside the slideViewStack.

//Add text
private function addText():void {
        var rte:RichTextEditor = new RichTextEditor();
        var tc:TextControl = new TextControl();
        rte.id = "rte";
        rte.styleName = "rtePanel";
        rte.addEventListener(FocusEvent.FOCUS_IN, enableToolbar);
        rte.addEventListener(FocusEvent.FOCUS_OUT, disableToolbar);
        slideViewStack.selectedChild.addChild(rte);
        rte.showControlBar=false;
        textControls.addChild(DisplayObject(rte.toolbar)); //causes 
problem
}

When the toolbar is added to the HBox, I get the following error 
trace:

ReferenceError: Error #1069: Property fontFamilyCombo not found on 
main and there is no default value.
        at mx.core::Container/hasChildMatchingDescriptor()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:3
704]
        at mx.core::Container/createComponentFromDescriptor()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:3
561]
        at mx.core::Container/createComponentsFromDescriptors()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:3
485]
        at mx.core::Container/createChildren()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:2
587]
        at mx.core::UIComponent/initialize()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as
:5262]
        at mx.core::Container/initialize()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:2
524]
        at 
mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::child
Added()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as
:5159]
        at 
mx.core::Container/http://www.adobe.com/2006/flex/mx/internal::childAd
ded()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:3
297]
        at mx.core::Container/addChildAt()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:2
210]
        at mx.core::Container/addChild()
[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Container.as:2
140]
        at main/addText()[C:\Users\Administrator\Documents\Flex 
Builder 3\Content_demo\src\main.mxml:398]
        at main/__addTextBtn_click()
[C:\Users\Administrator\Documents\Flex Builder 3
\Content_demo\src\main.mxml:504]

Any thoughts?  After closing the error, it generally seems to work as 
I'd hoped.