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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
an error has occurred
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an error has occurred" is correct and usable in written English.
It can be used in contexts such as software notifications, error messages, or technical documentation to indicate that a problem has taken place. Example: "Please try again later, as an error has occurred while processing your request."
✓ Grammatically correct
Science
News & Media
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
19 human-written examples
Error-detecting codes, on the other hand, indicate that an error has occurred but do not automatically correct the error.
Encyclopedias
"Something we need and do not have is a process that lets us move aggressively in admitting an error has occurred," said Chris Field, co-chair of Working Group II, which oversaw the 2007 report containing the glacier claim – though Field assumed the post after 2007.
News & Media
We have assumed that the number of positions where an error has occurred is m≤t.
Suppose i 1,…,i m be the positions where an error has occurred.
Its role is to indicate if an error has occurred in the process using the parities p ̄ l i and p ̄ u i.
Error propagation because of loss of synchronization can damage the whole data after an error has occurred in the compressed data.
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
Wyatt's report points out RDF and the BBC took 24 hours from when they first knew an error had occurred to when they put out a statement apologising for it.
News & Media
I realized, though, that if I did not say something convincing, and say it fast, I would implicate myself by admitting not only that I had made defective, inedible food but that I had so little awareness of my job that I could not even recall why or when such an error had occurred.
News & Media
A false negative/miss error might walk out of the clinic, never to be seen again by the experimenter who would never know that an error had occurred.
Before he went home on one Friday in 1947, he set the machines to perform a long and complex series of calculations over the weekend, only to find when he arrived on Monday morning that an error had occurred early in the process and the calculation had errored off.
Wiki
Specific medical device features can alert the hospital staff when an error had occurred.
Science
Expert writing Tips
Best practice
When communicating with users, provide specific details about the "error" if possible. Instead of just saying "an error has occurred", specify the type of error and steps to resolve it.
Common error
Avoid using "an error has occurred" as the only message. This provides little to no help to the user. Always aim to give context and suggest possible solutions or next steps.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an error has occurred" functions as a declarative statement, notifying the user or reader that a problem has arisen. It's a notification often used in technical contexts to signal a malfunction or issue. This aligns with Ludwig's observation that the phrase is correct and usable in written English.
Frequent in
Science
40%
News & Media
20%
Wiki
15%
Less common in
Encyclopedias
5%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
The phrase "an error has occurred" is a common and grammatically sound way to indicate that something has gone wrong. As Ludwig AI confirms, it is widely used in diverse contexts, from scientific publications and news reports to wikis and technical documentation. While the phrase is correct, providing more specific information about the nature of the "error" is crucial for effective communication. Ludwig's examples underscore the phrase's widespread use, highlighting its role in alerting users to problems that require attention. For alternative phrasing, consider options like "a mistake has happened" or "something went wrong", keeping in mind the context and desired level of formality.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a mistake has happened
Replaces "error" with "mistake" and "occurred" with "happened", offering a slightly less formal tone.
something went wrong
Uses a more general term "something" instead of specifying an "error", suitable for less technical contexts.
there was a problem
Employs a common expression indicating an issue, broader than a specific error.
an issue has arisen
Substitutes "error" with "issue" and "occurred" with "arisen", sounding slightly more formal and less accusatory.
a fault has developed
Replaces "error" with "fault" and "occurred" with "developed", often used in technical or mechanical contexts.
a glitch has manifested
Uses more technical terms like "glitch" and "manifested", suitable for software or electronic contexts.
there has been a malfunction
Replaces "error" with "malfunction", often used in the context of machines or systems.
an anomaly has been detected
Uses "anomaly" instead of "error", suggesting something out of the ordinary has been observed.
the system encountered a problem
Phrases the sentence from the system's perspective, indicating it experienced an issue.
a snag has cropped up
Uses the informal term "snag" to indicate a minor problem has appeared unexpectedly.
FAQs
What does "an error has occurred" mean?
The phrase "an error has occurred" indicates that something went wrong during a process or operation. It's a general statement signalling a problem that needs attention. It may require the user to take action, such as retrying or contacting support.
How to use "an error has occurred" in a sentence?
You can use "an error has occurred" to notify someone about a problem. For example, "An error has occurred while processing your payment; please try again later".
What can I say instead of "an error has occurred"?
You can use alternatives like "a mistake has happened", "something went wrong", or "an issue has arisen" depending on the context.
Is it better to say "an error occurred" or "an error has occurred"?
Both phrases are grammatically correct, but "an error has occurred" implies that the error happened recently and is relevant to the current situation. "An error occurred" is simpler and can refer to a past event. In most contexts, they're interchangeable.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested