ID:253001 Device family selection has changed. Do you want to remove all location and I/O standard 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 and I/O standard assignments.

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