ID:211002 Cannot find Quartus User-Defined Device or BSDL File <name>

CAUSE: You tried to import the specified Quartus User-Defined Device File (.qud) or BSDL file, but the Quartus Prime software cannot find the file..

ACTION: Click OK to close the message dialog box, verify that the file still exists, and then type the correct file and directory path names in the File Name box of the Import User-Defined Device dialog box.