Movable Type: Publish error in Master Archive Index:

Occasionally when re-publishing my whole site after modifying the templates, I get this error:

Error in <mtArchiveList> tag: Error in <mtArchiveLink> tag: You used an <$MTArchiveLink$> tag for linking into 'Individual archives, but that archive type is not published.

This happens when the changes to the template cause it to revert to “Not Published” for some reason. To fix, just select a publishing option for the template that did not publish, as shown.