Build failures Xcode 26.4.0
Apr 24, 17:25 UTCApr 24, 18:36 UTC
Duration
1h 11m
Impact
Minor
Root cause
Not disclosed
CircleCI, 90 days
28 incidents
Affected
macOS Jobs
Final update
Customers running macOS jobs on m4pro.medium and m4pro.large with the xcode:26.4.0 image experienced job rejections with the error: "Job was rejected because resource class , image xcode:26.4.0 is not a valid resource class". The issue has been resolved and affected jobs should now run normally. Customers whose jobs failed may rerun affected jobs. We thank you for your patience while our team worked on implementing a fix.
Timeline
- Resolved · Apr 24, 18:36 UTC
Customers running macOS jobs on m4pro.medium and m4pro.large with the xcode:26.4.0 image experienced job rejections with the error: "Job was rejected because resource class , image xcode:26.4.0 is not a valid resource class". The issue has been resolved and affected jobs should now run normally. Customers whose jobs failed may rerun affected jobs. We thank you for your patience while our team worked on implementing a fix.
- Monitoring · Apr 24, 18:01 UTC
A fix has been implemented and we are monitoring the results.
- Identified · Apr 24, 17:25 UTC
There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.
More from CircleCI
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2318:13 UTC | Delays in processing new signups and plan changes | none | 1h 53m |
| Sep 2116:22 UTC | Delays starting Linux Machine jobs | minor | 47m |
| Sep 1614:55 UTC | Customers may experience delays in UI updates | minor | 4h 35m |
| Sep 1514:42 UTC | Customers may experience delays in UI updates | minor | 2h 20m |
| Sep 1411:59 UTC | Increased wait times for macOS jobs | minor | 1h |
| Sep 1020:25 UTC | Issues loading pipelines for a small number of projects | minor | 1m |
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