Shared Parameter File Not Valid

When you try to use a shared parameter file you receive a message it can't be read or is not valid.

Issue: Shared parameter files created in a newer version of Revit , including point releases, may be invalid when used in an older version of Revit. This can occur if the shared parameter file includes parameter definitions based on new units or unit types (specs) that are not present in the older version of Revit.

Solution To use unit definitions from a newer version of Revit in a project, save the project in the newer version of Revit. Older versions of Revit will then have access to the unit definitions in the project, enabling use of the shared parameter file. If possible, coordinate to have all users working on a project on the same release of Revit.