Hosted image inventory
Azure Pipelines Ubuntu 24.04 hosted agent private Azure Artifacts feed 401 implicit credential provider restore NuGetAuthenticate
The pipeline's implicit credential provider path no longer authenticates restore.
Agent Quick Fix
Repair against the current Azure Pipelines hosted Ubuntu contract, then keep the change narrow and source-backed.
Product: Azure Pipelines hosted Ubuntu
Current-contract area: Private feed works locally but 401s on Ubuntu 24 agent
Likely root cause: The pipeline's implicit credential provider path no longer authenticates restore.
Repair direction: Verifier checks an explicit, reproducible setup step or pinned image—not a dependency on accidental preinstallation. Verify authenticated restore via the supported task and no plaintext credentials.Symptom
The pipeline's implicit credential provider path no longer authenticates restore.
Why This Happens
Preinstalled package inventory and exact tool versions are properties of a moving hosted image and cannot be recovered from local code.
Common Wrong Fixes
- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.
Codex Search Keywords
These are the search terms observed in a neutral Codex validation run for this failure shape.
Azure Pipelines Ubuntu 24.04 hosted agent private Azure Artifacts feed 401 implicit credential provider restore NuGetAuthenticate
site:learn.microsoft.com azure pipelines NuGetAuthenticate task Azure Artifacts Credential Provider restore 401