CP2101

[Jiaoding]

python3 kflash.py -p /dev/tty.SLAB_USBtoUART face_mask_detect.bin
[INFO] COM Port Selected Manually: /dev/tty.SLAB_USBtoUART
[INFO] Default baudrate is 115200 , later it may be changed to the value you set.
[INFO] Trying to Enter the ISP Mode...
.
[INFO] Automatically detected dan/bit/trainer

[INFO] Greeting Message Detected, Start Downloading ISP
Downloading ISP: |=============================================| 100.0% 10kiB/s
[INFO] Booting From 0x80000000
[INFO] Wait For 0.1 second for ISP to Boot
[INFO] Boot to Flashmode Successfully
[INFO] Selected Flash: On-Board
[INFO] Initialization flash Successfully
'MAIXLoader' object has no attribute 'raise_exception'

在[INFO] Initialization flash Successful后，停留很久，然后就是'MAIXLoader' object has no attribute 'raise_exception'，我是自己画的电路板，USB芯片用的是cp2102。请问这是什么原因导致的不能继续烧录？