Quartus Prime Pro 23.1 can't read my existing STP file

Hi,

Check this link https://www.intel.com/content/www/us/en/programmable/quartushelp/current/index.htm#msgs/msgs/esdr_source_generic.htm

May be corruption of .stp file during version migration. Probably creating new STP configurations will be the way.

Thanks,

Best Regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.