chenhg5/cc-connect · error

download returned HTTP %d

Error message

download returned HTTP %d

What it means

downloadToTemp received a non-200 HTTP status from the update server (404 for missing release asset, 403 rate-limited, 5xx server error). The update is aborted; the status code identifies why the release asset could not be fetched.

Source

Thrown at cmd/cc-connect/update.go:408

func downloadToTemp(url string) (string, error) {
	client := &http.Client{
		Timeout: 5 * time.Minute,
		CheckRedirect: func(req *http.Request, via []*http.Request) error {
			if len(via) >= 10 {
				return fmt.Errorf("too many redirects")
			}
			return nil
		},
	}

	resp, err := client.Get(url)
	if err != nil {
		return "", fmt.Errorf("download: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != 200 {
		return "", fmt.Errorf("download returned HTTP %d", resp.StatusCode)
	}

	tmp, err := os.CreateTemp("", "cc-connect-update-*")
	if err != nil {
		return "", err
	}

	size, err := io.Copy(tmp, resp.Body)
	if err != nil {
		tmp.Close()
		os.Remove(tmp.Name())
		return "", fmt.Errorf("write: %w", err)
	}
	tmp.Close()

	fmt.Printf("Downloaded %.1f MB\n", float64(size)/1024/1024)
	return tmp.Name(), nil
}

View on GitHub (pinned to 4000b2338a)

Solutions

1. For 404: the release asset name may have changed — update cc-connect
2. For 403/429: GitHub rate limit — wait and retry
3. Check the releases page to confirm the asset exists

When it happens

Trigger: Thrown at cmd/cc-connect/update.go:408 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of chenhg5/cc-connect@4000b2338a (2026-09-06). Data as JSON: /api/errors/e4374a4d3a312e4d. Report an issue: GitHub.