ID:199061 Can't generate Greybox netlist file because the Greybox netlist file name "<name>" has a file extension .vqm, which is not a valid file extension for a Greybox netlist file name

CAUSE: The Quartus Prime software cannot generate the Greybox file because the Greybox netlist file name cannot have a Verilog Quartus Mapping File (.vqm) extension.

ACTION: Execute the command again by changing the extension of the file name from a .vqm file extension to any other valid file extension, such as a Verilog Output File (.vo) extension.