GoogleContainerTools/skaffold · warning

getting latest version info from GCS: %w

Error message

getting latest version info from GCS: %w

What it means

DownloadLatestVersion fetches the latest-version file from GCS via util.Download(LatestVersionURL). This error wraps any failure to issue/complete that HTTP download, indicating skaffold could not read the latest release info from the network. The raw transport error is preserved with %w.

Source

Thrown at pkg/skaffold/update/update.go:100

	if err != nil {
		return none, none, err
	}
	log.Entry(context.TODO()).Tracef("latest skaffold version: %s", versionString)
	latest, err := version.ParseVersion(versionString)
	if err != nil {
		return none, none, fmt.Errorf("parsing latest version from GCS: %w", err)
	}
	current, err := version.ParseVersion(version.Get().Version)
	if err != nil {
		return none, none, fmt.Errorf("parsing current semver, skipping update check: %w", err)
	}
	return latest, current, nil
}

func DownloadLatestVersion() (string, error) {
	versionBytes, err := util.Download(LatestVersionURL)
	if err != nil {
		return "", fmt.Errorf("getting latest version info from GCS: %w", err)
	}
	return strings.TrimSuffix(string(versionBytes), "\n"), nil
}

func releaseURL(v semver.Version) string {
	return fmt.Sprintf("https://github.com/GoogleContainerTools/skaffold/releases/tag/v%s", v.String())
}

View on GitHub (pinned to a1189de023)

Solutions

1. Verify network connectivity: curl the LatestVersionURL directly and compare the error.
2. Configure HTTPS_PROXY/HTTP_PROXY correctly for corporate environments.
3. Retry later if it is a transient network/GCS outage; the update check is optional.
4. Check firewall rules allow egress to storage.googleapis.com.

Example fix

// before: fail the whole flow on network errors
versionBytes, err := util.Download(LatestVersionURL)
// after: degrade gracefully when offline
versionBytes, err := util.Download(LatestVersionURL)
if err != nil {
    return "", fmt.Errorf("getting latest version info from GCS: %w", err) // callers should treat as advisory
}

u, err := url.Parse(LatestVersionURL)
if err != nil || u.Scheme == "" { return fmt.Errorf("bad URL: %q", LatestVersionURL) }
// pre-check connectivity
conn, err := net.DialTimeout("tcp", u.Host+":443", 3*time.Second)

func isNetworkErr(err error) bool {
    var ne net.Error
    return errors.As(err, &ne) || errors.Is(err, syscall.ECONNREFUSED) || strings.Contains(err.Error(), "no such host")
}

v, err := DownloadLatestVersion()
if err != nil {
    var ne net.Error
    if errors.As(err, &ne) { /* retry with backoff */ }
    return fallbackVersion, nil // advisory only
}

When it happens

Trigger: util.Download returns an error: invalid URL (http.NewRequest failure), DNS failure, connection refused/timeout, or non-200 status ('http 403, error ...'). Raised in DownloadLatestVersion, which is called by GetLastReleasedVersion and getLatestAndCurrentVersion.

Common situations: No internet access or airplane mode; corporate firewall/proxy blocking storage.googleapis.com; GCS outage; DNS misconfiguration; the version-check URL being redirected/blocked by security tooling.

Understand the failure class

Background: 'Something went wrong' / 'Request failed (500)' / 'HTTP error! status: 404' — what failed HTTP requests actually mean and how to find the real cause — this error's family across 28 libraries.

Related errors

• http %d, error %q
• failed to iterate objects: %v
• failed to read object: %v
• failed to copy object to file: %v
• error copying file to GCS: %w

AI-assisted analysis of GoogleContainerTools/skaffold@a1189de023 (2026-09-05). Data as JSON: /api/errors/708888c1d574d118. Report an issue: GitHub.