Revit 2021 Units Upgrade for Family Type files

Your Family Type files may not work in Revit 2021 because Autodesk renamed several unit types. If you’d like a free tool to update your type files – here it is.

After this tool changes your family type files, those files won’t work in older versions of Revit because of the unit type renaming.

Ideas Forum post

https://forums.autodesk.com/t5/revit-ideas/revit-2021-resolve-parameter-unit-naming-problem-when-loading/idc-p/9845788#M34273

The Building Coder post

https://thebuildingcoder.typepad.com/blog/2020/04/revit-2021-unit-types-family-type-catalogues.html

Help file

http://help.autodesk.com/view/RVT/2021/ENU/?guid=Revit_API_Revit_API_Developers_Guide_Introduction_Application_and_Document_Units_html