Message in Chinese (Simplified) (中文(简体))
类型“<var>Type Name</var>”必须是不可以为 null 值的类型，才能用作泛型类型或方法“<var>Method name</var>”中的参数“<var>X</var>”
Unlocalized message
The type '<var>Type Name</var>' must be a non-nullable value type in order to use it as parameter '<var>X</var>' in the generic type or method '<var>Method name</var>'
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