# File lib/chef-config/mixin/credentials.rb, line 65
      def parse_credentials_file
        credentials_file = credentials_file_path
        return nil unless File.file?(credentials_file)
        begin
          Tomlrb.load_file(credentials_file)
        rescue => e
          # TOML's error messages are mostly rubbish, so we'll just give a generic one
          message = "Unable to parse Credentials file: #{credentials_file}\n"
          message << e.message
          raise ChefConfig::ConfigurationError, message
        end
      end