Lovable app not deploying or not working after publish

What it means in plain English

Lovable's publish guide says: "When a publish fails, a Publishing failed banner appears in the Publish dialog with a message explaining what went wrong and how to resolve it." Each message has its own fix. Sometimes the dialog blocks publishing before it starts.

A different problem looks the same: the publish worked, but the live site doesn't show your latest changes. Lovable says publishing "deploys a snapshot," and later changes "are not automatically pushed live."

Likely causes

From Lovable's troubleshooting list:

• Temporary issue, "such as a timeout or a rate limit on a connected service."
• Error in your app, "such as a build error or an edge function that couldn't be deployed."
• Configuration issue, for example "a file that is too large to include."
• External connection or secret, "such as an expired Supabase connection or a connected service that reached its plan limits."
• Database change conflicts with existing data in the live database.
• Internal error on Lovable's side.
• Blocked before publishing: Build errors need fixing, no editor permission, a workspace approval policy, or Fix security issues to publish.

How to fix it, step by step

1. Open the Publish dialog and read the banner or the blocked-button message.
2. Temporary issue: click Try again. Lovable says "Retries usually succeed."
3. Error in your app or configuration issue: click Try to fix. Lovable investigates and applies a fix. Then publish again.
4. External connection or secret: fix the setting outside the project, for example reconnect Supabase or raise a plan limit, then click Try again. For Supabase, see Lovable Supabase connection broke.
5. Database conflict: click Ask the assistant to help. Lovable confirms with you before changing real data.
6. Internal error: try again after a few minutes. If it keeps failing, contact Lovable support with your project link.
7. Blocked: ask for editor access, request approval, or open the Security view and fix critical findings.
8. Published but old: click Publish, then Publish changes. A dot on the Publish button means you have unpublished changes.
9. Not live at my URL: confirm the dialog said Your website is live, and open the exact lovable.app address from your URL subdomain. A custom domain's DNS can take time.

How to check it worked

• The dialog shows Your website is live, and the Publish button has no dot.
• The live URL shows your latest change in a private window.

If the live page is blank, see Lovable blank screen after publish. If only the editor preview fails, see Lovable: Live preview couldn't start.

Questions people ask

Why can't I publish my Lovable project?

Lovable shows a Publishing failed message with the action to take, or blocks the dialog for build errors, missing editor permission, a workspace approval policy, or unresolved critical security issues.

Why don't I see my latest changes on the live Lovable site?

Publishing deploys a snapshot, and later changes are not pushed automatically. Click Publish, then Publish changes.

What should I do if Lovable publishing fails with an internal error?

Lovable says to try publishing again after a few minutes, and to contact support with your project link if the failure keeps happening.

Sources

• https://docs.lovable.dev/features/publish (opens in a new tab)
• https://docs.lovable.dev/integrations/supabase (opens in a new tab)