ID:296045 Removing device assignments without removing all assignments from design may cause problems in future design compilation. Do you want to remove only the device assignments and the other assignments you turned on?

CAUSE: In the Available assignment categories list, and you may have turned on one or more other categories in the list, but you did not turn on all the categories in the list. Removing device assignments from a design without removing all the other categories of assignments from the design may cause problems in future design compilation. The Quartus Prime software is verifying that you want to remove only the device assignments and the other assignments you turned on in the Available assignment categories list.

ACTION: Click Yes to remove only the assignments you turned on in the Available assignment categories list. Click No to return to the Remove Assignments dialog box so that you can turn off Device Assignments or turn on all the categories in the Available assignment categories list.