403 Forbidden on create or upload | Use an organization owner or admin, or another cloud user with access to the site; see Security and access |
| Missing index.html | Zip the build output folder; see Archives and deployment |
| Rejected for .env | Remove env files from the archive root |
| File too large | Stay under 10 MiB—Archive limits |
| Bad zip or tar | Re-export; confirm extension matches content |
| Can't change the slug | Create a new worker with the slug you want |
Cannot delete the active build (returned as 500) | Make another build live with set-active-build, then delete this one |