grafana/k6 · error

steps must be an integer, got %s

Error message

steps must be an integer, got %s

What it means

Error "steps must be an integer, got %s" thrown in grafana/k6.

Source

Thrown at internal/js/modules/k6/browser/browser/mouse_mapping.go:164

	return popts, nil
}

// parseMouseMoveOptions parses the mouse move options from a Sobek value.
func parseMouseMoveOptions(rt *sobek.Runtime, opts sobek.Value) (*common.MouseMoveOptions, error) {
	popts := common.NewMouseMoveOptions()
	if k6common.IsNullish(opts) {
		return popts, nil
	}

	obj := opts.ToObject(rt)
	for _, k := range obj.Keys() {
		if k == "steps" {
			v := obj.Get(k)
			switch v.ExportType().Kind() {
			case reflect.Int64:
				popts.Steps = v.ToInteger()
			default:
				return nil, fmt.Errorf("steps must be an integer, got %s", v.ExportType().Kind())
			}
		}
	}

	return popts, nil
}

View on GitHub (pinned to 93accf6570)

When it happens

Trigger: Thrown at internal/js/modules/k6/browser/browser/mouse_mapping.go:164 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of grafana/k6@93accf6570 (2026-08-15). Data as JSON: /api/errors/119a50508a421400. Report an issue: GitHub.