
You must repair this condition in order to start Revit. If this folder is missing, contains files not expected, or the files are damaged in some way, you will receive an error dialog and Revit will close. This folder must be present, and contain valid files in order for Revit to start properly. The schema folder contains files related to the processing of units in Revit.

Repair/reinstall Revit, or replace the folder with the contents of the folder from a working Revit installation.

If the schemas folder is missing, empty, or contains damaged files, the Missing Schema Folder dialog displays.
