how to solve it or it's a bug?

[zhuyu4839]

Traceback (most recent call last):
File "stcflash.py", line 637, in
main()
File "stcflash.py", line 610, in main
aispbaud = int(a)
ValueError: invalid literal for int() with base 10: './test.bin'

[laborer]

Please paste the full command you used with arguments. It looks like that you didn't specify an integer after argument --aispbaud to set the baud rate for auto ISP.