Deep breath. This is almost always a little hiccup on our side, not something you did. Just hit retry. And good news: a failed build does not cost you credits.
Try this
Hit retry (the little circle arrow by the box). It runs your idea again, no retyping.
If it fails again, wait a minute and try once more. These usually clear up fast.
Still no luck? Try a shorter, simpler idea. You can add more once it works.
Still stuck? Send us your Run ID (under your avatar, Help and Support) and we will jump in.
Stuck a long time on a step like "Fetching assets," "Uploading artifact," or "Construction"? Same hiccup. Press Stop, then hit retry.