This is really a detailed response. I followed your indication and success to add an existed symbol. But I do'nt know other ALLEGRO_SYMBOL_NAMEs which not exist on the exported netlist.txt. And I don't know how to sign a self-created symbol to be an ALLEGRO_SYMBOL_NAME.
Do you know where can I get an ALLEGRO_SYMBOL_NAME list and how to sign my own symbol be a ALLEGRO_SYMBOL_NAME?
You have mentioned "padpath, psmpath and devpath", so I tried to type each of them to the command line and got error "E- Command not found: padpath". I am not understanding this part, can you explain to me again?
I know it spend time to answer questions, but it would be very helpful to me. Thank you very much!