ID:253001 Device family selection has changed. Do you want to remove all location assignments?

CAUSE: In the Device page of the Settings dialog box, you selected a new device family from the Family list. The Quartus Prime software is asking if you want to remove all existing location assignments.

ACTION: Click Yes to remove all location assignments, you can subsequently select a specific device for the Fitter to target. Click No to retain all location assignments, or click Cancel to revert to the previous device family and target device and retain all previous location assignments.