hashicorp/packer · error

failed to update channel %s: %w

Error message

failed to update channel %s: %w

What it means

HCP registry error from Bucket.updateChannels: assigning the build's version fingerprint to one of the configured channel names failed via the HCP UpdateChannel API. Commonly caused by a channel that doesn't exist yet or an auth/permission problem.

Source

Thrown at internal/hcp/registry/types.bucket.go:332

	return bucket.client.UploadSbom(ctx, bucket.Name, bucket.Version.Fingerprint, buildToUpdate.ID, sbom)
}

func (bucket *Bucket) updateChannels(ctx context.Context, ui packerSDK.Ui) error {
	if len(bucket.Channels) == 0 {
		return nil
	}

	body := &hcpPackerModels.HashicorpCloudPacker20230101UpdateChannelBody{
		VersionFingerprint: bucket.Version.Fingerprint,
		UpdateMask:         "versionFingerprint",
	}

	for _, channel := range bucket.Channels {
		ui.Say(fmt.Sprintf("==> Assigning version `%s` to channel `%s`", bucket.Version.Fingerprint, channel))
		_, err := bucket.client.UpdateChannel(ctx, bucket.Name, channel, body)
		if err != nil {
			ui.Error(fmt.Sprintf("==> Failed assigning version `%s` to channel `%s`: %v", bucket.Version.Fingerprint, channel, err))
			return fmt.Errorf("failed to update channel %s: %w", channel, err)
		}
	}

	return nil
}

// markBuildComplete should be called to set a build on the HCP Packer registry to DONE.
// Upon a successful call markBuildComplete will publish all artifacts created by the named build,
// and set the build to done. A build with no artifacts can not be set to DONE.
func (bucket *Bucket) markBuildComplete(ctx context.Context, name string) error {
	buildToUpdate, err := bucket.Version.Build(name)
	if err != nil {
		return err
	}

	if buildToUpdate.ID == "" {
		return fmt.Errorf("the build for the component %q does not have a valid id", name)
	}

View on GitHub (pinned to eb36e3c3e4)

Solutions

1. Create the channel on the bucket in HCP Packer before assigning versions to it
2. Check registry credentials and retry for transient API errors

When it happens

Trigger: Thrown at internal/hcp/registry/types.bucket.go:332 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hashicorp/packer@eb36e3c3e4 (2026-09-05). Data as JSON: /api/errors/8525fdcffa9455de. Report an issue: GitHub.