Notify the user if an error occurred during the asynchronous call.

如果在异步调用过程中出现错误，则通知用户。

youdao

The function returns when the mutex is locked, or if an error occurred.

当互斥被锁定或者发生错误时，函数返回。

youdao

An error occurred because now the item for the fourth row does not have any children.

错误就出现了，因为现在第4行的条目没有子条目。

youdao

He added that the club had launched an inquiry into how the error occurred and would discuss grounds for an appeal.

BBC: Bay get National Trophy reprieve

This so-called fat-finger error occurred when a trader accidentally entered an order to sell a billion shares rather than a million shares.

FORBES: Fat Fingers Cause Panics