I have the following error when I try to open my xaml file under Visual Studio 2010 WPF Designer :
An Unhandled Exception has occured
System.MissingMethodException
Method not found: 'Void Microsoft.Expression.DesignModel.Core.PlatformService.RegisterPlatform(System.String, System.String, System.String, Boolean)'.
Blend 4 trial is however able to open and display this file.
Under Windows 7 Professional x64.
Best regards.
Jean-Pierre
View Complete Post