Message in Chinese (Simplified) (中文(简体))
当指定 unwrapSingleProperty 时,参数表达式必须具有以下 ResultType: 具有一个结构化元素类型(声明一个且仅一个属性)的 CollectionType。
Unlocalized message
When unwrapSingleProperty is specified the argument expression must have the following ResultType: a CollectionType with a structured element type that declares exactly one property.
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