Description
This is a warning message that occurs when there are no features that are openings (such as doorways) imported based on the information in the input Excel template. As a result, the input geodatabase's Details feature class may not include features representing doorways or other openings.
Solution
To close polyline gaps, verify that the values are correct in the CAD Layer to FC Mapping sheet's OPENINGS column, and set CLOSE_DOORS to Y in the Level Properties sheet.