If you are doing Windows Phone 7 development and have the Blend Add-in for Windows Phone 7 Preview 2, Blend SDK for Windows Phone 7 Preview 2 and Windows Phone 7 Tools SDK installed, and are trying to use Expression Blend 4 RTM it will not work. When you open Expression Blend 4 it will throw an error saying it can not load the extension, and if you view the results tab it will show the following error:
Could not load file or assembly ‘Microsoft.Expression.Framework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35′ or one of its dependencies.
I tried everything to get this to work, but in the end I was forced to uninstall the RTM version of Expression Blend 4 and install the Expression Blend 4 RC version instead and it works like a charm? This seems odd, and it also seems pretty messed up, I think Microsoft should make this issue very clear on their Windows Phone 7 Developer site otherwise it is extremely misleading, especially since the only version of Expression Blend 4 available through MSDN is the RTM version!
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Microsoft isn’t any stranger to having partners galore in the telephone business, but its lineup of manufacturers for the upcoming, surprisingly promising Windows Cellphone 7 launch isn’t any less impressive. After loads of rumoring, Microsoft has confirmed that Dell and HTC shall be making Home windows Phone 7 phones, along with ASUS, LG, and Samsung who had already been confirmed. All of those firms ought to have their stamp on hardware by the end of the year, with the launch of the OS still vaguely slated for the “holidays” Now we have little doubt that all five producers can build some compelling, horny hardware, but we’re notably enthused to see Dell actually entering into the sport after the spectacular Streak and that drool worthy leak a short while back. learn more at http://www.wp7forum.com followers group.