GoogleContainerTools/skaffold · error

deleting label: %w

Error message

deleting label: %w

What it means

Returned by Client.RemoveLabelFromPR when the GitHub API call Issues.RemoveLabelForIssue fails while deleting a label from a pull request. The underlying GitHub error is wrapped for unwrapping, so 404s (label or PR not found), auth failures, and rate limits are all surfaced here.

Source

Thrown at pkg/webhook/github/github.go:74

func (g *Client) CommentOnPR(pr *github.PullRequestEvent, message string) error {
	comment := &github.IssueComment{
		Body: &message,
	}

	log.Printf("Creating comment on PR %d: %s", pr.PullRequest.GetNumber(), message)
	_, _, err := g.Client.Issues.CreateComment(g.ctx, constants.GithubOwner, constants.GithubRepo, pr.PullRequest.GetNumber(), comment)
	if err != nil {
		return fmt.Errorf("creating github comment: %w", err)
	}
	log.Printf("Successfully commented on PR %d.", pr.GetNumber())
	return nil
}

// RemoveLabelFromPR removes label from pr
func (g *Client) RemoveLabelFromPR(pr *github.PullRequestEvent, label string) error {
	_, err := g.Client.Issues.RemoveLabelForIssue(g.ctx, constants.GithubOwner, constants.GithubRepo, pr.GetNumber(), label)
	if err != nil {
		return fmt.Errorf("deleting label: %w", err)
	}
	log.Printf("Successfully deleted label from PR %d", pr.GetNumber())
	return nil
}

View on GitHub (pinned to a1189de023)

Solutions

1. Check the unwrapped GitHub error status; treat 404 as benign (label already absent) if removal is idempotent in your flow.
2. Verify the label string exactly matches the repo's label name (case-sensitive, spaces included).
3. Ensure the token has repo write / `pull-requests: write` scope.
4. Verify constants.GithubOwner/GithubRepo and that pr.GetNumber() is current.
5. On 403 rate-limit errors, back off until the rate-limit reset time and retry.

Example fix

// before
if err := g.RemoveLabelFromPR(pr, "skaffold-ok"); err != nil { return err }
// after
if err := g.RemoveLabelFromPR(pr, "skaffold-ok"); err != nil {
    var ghErr *github.ErrorResponse
    if errors.As(err, &ghErr) && ghErr.Response.StatusCode == http.StatusNotFound {
        return nil // label already gone
    }
    return err
}

// pre-flight: check the label exists on the PR before removing
labels, _, err := gc.Issues.ListLabelsForIssue(ctx, owner, repo, num, nil)
if err == nil && !containsLabel(labels, label) { return nil }

// Go
if err := g.RemoveLabelFromPR(pr, label); err != nil {
    var respErr *github.ErrorResponse
    if errors.As(err, &respErr) && respErr.Response.StatusCode == 404 {
        return nil // label already absent; idempotent removal
    }
    return err
}

When it happens

Trigger: Calling RemoveLabelFromPR with a label name that does not exist on the issue (GitHub returns 404), an unauthorized/insufficient-scope token, a bad owner/repo, a stale PR number, or a network failure.

Common situations: The webhook tries to remove a label (e.g. an auto-applied 'deploy/skaffold' status label) that was already removed or never added; token lacks write access; label renamed in the repo settings while webhook code still references the old name.

Related errors

• creating github comment: %w
• DEPLOY_CLOUD_RUN_GET_SERVICE_ERR
• DEPLOY_CLOUD_RUN_UPDATE_SERVICE_ERR
• StatusCode_DEPLOY_CLOUD_RUN_DELETE_SERVICE_ERR
• StatusCode_DEPLOY_CLOUD_RUN_DELETE_WORKER_POOL_ERR

AI-assisted analysis of GoogleContainerTools/skaffold@a1189de023 (2026-09-05). Data as JSON: /api/errors/2a1d5092b8b69bac. Report an issue: GitHub.