helm/helm · error

unable to parse YAML: %w

Error message

unable to parse YAML: %w

What it means

Error "unable to parse YAML: %w" thrown in helm/helm.

Source

Thrown at internal/chart/v3/lint/rules/template.go:236

		return errors.New("not a directory")
	}
	return nil
}

func validateAllowedExtension(fileName string) error {
	ext := filepath.Ext(fileName)
	validExtensions := []string{".yaml", ".yml", ".tpl", ".txt"}

	if slices.Contains(validExtensions, ext) {
		return nil
	}

	return fmt.Errorf("file extension '%s' not valid. Valid extensions are .yaml, .yml, .tpl, or .txt", ext)
}

func validateYamlContent(err error) error {
	if err != nil {
		return fmt.Errorf("unable to parse YAML: %w", err)
	}
	return nil
}

// validateMetadataName uses the correct validation function for the object
// Kind, or if not set, defaults to the standard definition of a subdomain in
// DNS (RFC 1123), used by most resources.
func validateMetadataName(obj *k8sYamlStruct) error {
	fn := validateMetadataNameFunc(obj)
	allErrs := field.ErrorList{}
	for _, msg := range fn(obj.Metadata.Name, false) {
		allErrs = append(allErrs, field.Invalid(field.NewPath("metadata").Child("name"), obj.Metadata.Name, msg))
	}
	if len(allErrs) > 0 {
		return fmt.Errorf("object name does not conform to Kubernetes naming requirements: %q: %w", obj.Metadata.Name, allErrs.ToAggregate())
	}
	return nil
}

View on GitHub (pinned to 2a29f1770b)

When it happens

Trigger: Thrown at internal/chart/v3/lint/rules/template.go:236 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of helm/helm@2a29f1770b (2026-08-15). Data as JSON: /api/errors/e3cd937c5b977483. Report an issue: GitHub.