Tag: doc-base-file-unknown-field Severity: error Check: menus Explanation: The doc-base control file contains a field that is either unknown or invalid in the section in which it appears. . Possible reasons are a typo in field name, a missing empty line between sections in the control file, or an extra empty line between sections. See-Also: doc-base-manual 2.3.2.1, doc-base-manual 2.3.2.2