xaml designer:cannot find the x:uid attribute

Hi all,

I installed WPF/WCF extensions for visual studio 2005 which version is 8.0.50727.762 with sp.050727-7600. I met the problems that:

*cannot find the clr-namespace in same assembly with this xaml file

*the xaml designer warning there is no x:uid attribute declared in xaml schema ("Thehttp://schemas.microsoft.com/winfx/2006/xaml:udi attribute is not declared"), I checked the xaml2006.xsd and confirmed there was no such an attribute defined

Did anybody meet such problems before? I wonder if it is the only way to upgrade to orcas if I want to use full functions of xaml designer.

Thanks for your responses

[786 byte] By [HenryW_AU] at [2008-1-5]