It appears the issue is that you are specifying a locale for the resource file without having a default one present in your solution.
DisplayName.resx
would be the default language of your application and is needed for the resolution mechanism to work
DisplayName.<locale code>.resx
will then override the default locale resources for that particular locale.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…