Error (169187): Following feature(s) of I/O pin has invalid setting(s) in the configuration scheme ACTIVE_SERIAL when the pin is placed at pin <location> - Error (169187): Following feature(s) of I/O pin has invalid setting(s) in the configuration scheme ACTIVE_SERIAL when the pin is placed at pin <location> Description You might see this error message in the Intel® Quartus® Prime Software if you change the current strength of the ASDO pin from the default value, in a project targeting Cyclone® III or Cyclone® IV devices. The ASDO pin only supports the default value for current strength. Resolution To work around this, remove the following line from the Quartus Settings File (.qsf) for the ASDO pin: set_instance_assignment -name CURRENT_STRENGTH_NEW <current strength value> -to <pin_name> Custom Fields values: ['novalue'] Troubleshooting - False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 15.1 ['Cyclone® III FPGAs', 'Cyclone® III LS FPGA', 'Cyclone® IV E FPGA', 'Cyclone® IV GX FPGA'] ['novalue'] ['novalue'] ['novalue']