Upgrading Helix Sitemaps
From HelixCore
If you have upgraded Helix from an older version and don't have the default sitemap available, you can use the Component Admin Tool to install the component. This requires a server with PHP 5.0+ to use. If you do not meet these requirements then you need to edit the 'components' table in the database and add a new component that points to a fileName of 'std.sitemap'.
Once the component is installed, create a new page and use that component. It is recommended the new page be a child of Home (page 1) and be named 'Sitemap'. The default URL is /sitemap.html.
