Report a problem in a lesson
Press Report an issue in the lesson, choose what the problem is about and what kind it is, and send it. The report goes straight to the team that writes the lessons, with the exact lesson attached.
Updated October 17, 2026
- In the lesson, press Report an issue (the flag icon by the editor), or open the Feedback tab in the lesson sidebar. It is also under a hint and on the SOLUTION tab.
- Choose what the problem is about, such as the lesson content, a test case, a hint or the solution code.
- Choose the Feedback type and describe the problem.
- Leave Include my current code and Include my last run output on if they help explain it, and press SEND.
- After you check your answer, tap the flag icon on the result.
- Choose what kind of problem it is and describe it.
- Tap SEND.
The report includes the exact lesson you are on, so you don't need to say where it is.
What to report
- My answer is correct, but it is not accepted
- An error in the lesson or question
- Something missing or not displayed
- A typo or a translation problem
- A solution that doesn't match the challenge
- A bug, or a challenge that is too hard
When we fix a lesson you reported, we email you.
Not about a specific lesson? Contact us instead.