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'Frame' TargetType does not match type of element 'PlaceHolderControl'

Posted By:      Posted Date: September 10, 2010    Points: 0   Category :WPF
Hi. I'm trying to modify ControlTemplate for WPF Frame control. I extract Frame ControlTemplate  using blend. When I try to compile my app I get the following error: 'Frame' TargetType does not match type of element 'PlaceHolderControl'. Any ideas why?

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