Here are some common error conditions that need to be handled.

在下面的一些条件之下会发生错误，我们需要对这些情况进行处理。

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Here are some questions to give you ways to think about error.

下列问题为你提供思考这些错误的思路。

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Consider the effects of a call returning with an error status - perhaps alert the user somehow. A pattern like Synchronisation Status helps here, to alert the user that some data is stale.

考虑调用返回一个错误状态的情况，这种情况下可能会提示用户一些莫名其妙的信息。

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Consider the effects of a call returning with an error status - perhaps alert the user somehow. A pattern like Synchronisation Status helps here, to alert the user that some data is stale.

考虑调用返回一个错误状态的情况，这种情况下可能会提示用户一些莫名其妙的信息。

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