microsoft/typescript-go · info

failed to refresh code lens: %w

Error message

failed to refresh code lens: %w

What it means

RefreshCodeLens (server.go:357-366): the client advertised codeLens refresh support, but the fire-and-forget workspace/codeLens/refresh request could not be queued to the outgoing writer. Identical failure mode to the inlay-hint refresh: local send failure only, never a client response error, because no response is awaited.

Source

Thrown at internal/lsp/server.go:363

func (s *Server) RefreshInlayHints(ctx context.Context) error {
	if !s.clientCapabilities.Workspace.InlayHint.RefreshSupport {
		return nil
	}

	if err := sendClientRequestFireAndForget(s, lsproto.WorkspaceInlayHintRefreshInfo, lsproto.NoParams{}); err != nil {
		return fmt.Errorf("failed to refresh inlay hints: %w", err)
	}
	return nil
}

func (s *Server) RefreshCodeLens(ctx context.Context) error {
	if !s.clientCapabilities.Workspace.CodeLens.RefreshSupport {
		return nil
	}

	if err := sendClientRequestFireAndForget(s, lsproto.WorkspaceCodeLensRefreshInfo, lsproto.NoParams{}); err != nil {
		return fmt.Errorf("failed to refresh code lens: %w", err)
	}
	return nil
}

// ProgressStart implements project.Client.
func (s *Server) ProgressStart(message *diagnostics.Message, args ...any) {
	if s.projectProgress != nil {
		s.projectProgress.start(message, args...)
	}
}

// ProgressFinish implements project.Client.
func (s *Server) ProgressFinish(message *diagnostics.Message, args ...any) {
	if s.projectProgress != nil {
		s.projectProgress.finish(message, args...)
	}
}

View on GitHub (pinned to 1bcfa18d79)

Solutions

1. Treat as advisory: log-and-continue; the client re-requests code lenses on next interaction.
2. During teardown, filter these out when the server/context is shutting down.
3. If persistent mid-session, investigate the underlying writer error that appears alongside it.

Example fix

// before
if err := client.RefreshCodeLens(ctx); err != nil { return fmt.Errorf("reload: %w", err) }
// after
if err := client.RefreshCodeLens(ctx); err != nil {
    log.Printf("code lens refresh skipped: %v", err)
}

if clientCaps.Workspace.CodeLens.RefreshSupport && ctx.Err() == nil {
    if err := client.RefreshCodeLens(ctx); err != nil {
        log.Printf("code lens refresh skipped: %v", err)
    }
}

func codeLensRefreshSafe(caps lsproto.ResolvedClientCapabilities, ctx context.Context) bool {
    return caps.Workspace.CodeLens.RefreshSupport && ctx.Err() == nil
}

if err := client.RefreshCodeLens(ctx); err != nil {
    if ctx.Err() != nil {
        return nil // teardown; ignore
    }
    log.Printf("code lens refresh skipped: %v", err)
}

When it happens

Trigger: Outgoing queue closed, writer failed, or background context canceled while a project reload or config change triggers a code lens refresh; commonly interleaved with session close.

Common situations: Shutdown races; broken pipe after an editor crash; tests tearing down in-memory connections with pending refreshes.

Related errors

• failed to refresh diagnostics: %w
• failed to refresh inlay hints: %w
• Unexpected number of arguments.
• Invalid value for ${name}: ${value}
• forRelease requires setPrerelease unless nativePreviewReleas

AI-assisted analysis of microsoft/typescript-go@1bcfa18d79 (2026-08-16). Data as JSON: /api/errors/ed778bcb87060c11. Report an issue: GitHub.