MergedDictionaries中的ResourceDictionary导致VS 2012 Designer无法加载的原因

ResourceDictionary Source =“...”ist下划线，VS设计器抛出异常。一切都在VS 2008中工作MergedDictionaries中的ResourceDictionary导致VS 2012 Designer无法加载的原因

<ResourceDictionary> 
    <ResourceDictionary.MergedDictionaries> 
     <ResourceDictionary Source="pack://application:,,,/MySolution.MyProject;component/Styles/MyStyles.xaml" /> 
    </ResourceDictionary.MergedDictionaries> 
</ResourceDictionary>

例外：

异常：值不能为空。参数名称：item（与InnerException相同） at Microsoft.Expression.Platform.InstanceBuilders.ClrObjectInstanceBuilder.InstantiateChildren(IInstanceBuilderContext context, ViewNode viewNode, DocumentCompositeNode compositeNode, Boolean isNewInstance)

来源

2012-12-13 PaN1C_Showt1Me