Firebase incident

Firebase App Hosting NextJS builds Failing

Major Resolved

Firebase experienced a major incident on December 4, 2025 affecting App Hosting and App Hosting (global), lasting 42m. The incident has been resolved; the full update timeline is below.

Started
Dec 04, 2025, 12:27 AM UTC
Resolved
Dec 04, 2025, 01:09 AM UTC
Duration
42m
Detected by Pingoru
Dec 04, 2025, 12:27 AM UTC

Affected components

App HostingApp Hosting (global)

Update timeline

  1. investigating Dec 04, 2025, 01:37 AM UTC

    Next.js app builds were failing due to an issue in a recent update to the App Hosting Next.js adapter. The change has been rolled back and we believe the issue has been mitigated.

  2. resolved Dec 04, 2025, 01:41 AM UTC

    Affected builds will have failed with the error "Cannot find package 'semver'". This is now fully rolled back and mitigated.