Arena Troubleshooting: Ready to Build in Code Arena
Last updated: June 17, 2026
In some cases, users may encounter an issue when generating in Code Arena. The generation appears to complete, but the preview shows the message: `Ready to build. Start prompting to build your app`

What’s Happening
When the generation completes, a model instruction-following issue can sometimes occur, causing this error message to appear in the preview.
Despite the error message, the generated code itself is typically unaffected and should function as intended.
Recommended Steps
Starting a new chat session is your best next step. Unfortunately, this chat session is no longer usable.
Status
The team is aware of this ongoing issue. Fortunately, it doesn’t appear to be a very common bug. That said, we understand the inconvenience and frustration it can cause, especially since there currently aren’t any reliable workarounds available.
The issue is on the team’s radar, and we appreciate your patience while we continue investigating it.