It will be weeks, perhaps months, before the error is discovered.

In fact, they covered the situation well once the error was discovered.

The error was discovered in 2010 but he has refused to pay back the money.

When an error is discovered from an earlier period, you must contact us at once, giving details.

By yesterday afternoon, the error had been discovered, and the story quickly changed.

These errors were discovered last week during research for an article on later developments.

But they disagreed about when the error had been discovered.

But that error must be discovered, and then would come the pursuit.

The error was discovered yesterday morning and corrected by early afternoon.

Several prominent mule errors have been discovered in recent times.