The XML map that you have selected does not contain any data. To save or export, at least one mapped element must contain data.

您所选择的映射XML 不包含数据。若要保存或导出，则至少必须有一个被映射元素包含数据。

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Our communities, our economy, and our environment all stand to benefit as we move forward with the Energy Data Initiative to unlock data that can lead us to new ways to save energy and money, reduce pollution, provide energy services, and create jobs to ensure an American economy that is built to last.

WHITEHOUSE: Brainstorming With Energy Data

Until access has been granted for an entity type, the event store will not contain any calendars for that entity type and any attempt to save data will fail.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

So while we implement data loss prevention measures to save ourselves in fear of a Wikileaks episode that never comes we just may find it keeps us from harming ourselves.

FORBES: Wikileaks' Positive Side Effect for IT