This method is only recommended if the official updater fails and you have a backup.
However, if you are running an older build (20.1.x or 20.2.x), do not attempt to patch directly. You must first install the full X10 update to 20.3.0.54 (available from Chief Architect’s legacy portal), then apply the patch. Chief Architect Interiors X10 20.3.0.54 Patch
He clicked the 'About' tab: Chief Architect Interiors X10, Version 20.2. This method is only recommended if the official