因此,如果依据主要由经济因素组成的基础结构,则社会的多样性是可以解释的. This error may also arise any time you were being Formerly trying to bind inaccessible or non-present Enumerable instance utilizing XAML property At compile time DefaultValueAttribute is not going to impact the produced IL and it won't be read to initialize the property to that worth (see DefaultValue attribute https://www.reddit.com/user/MaxEstates36a/