求助，我在yolo官网下载模型转换成pb文件时出错，能指导一下吗？

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sudo docker run -it -v /Users/admin/yolo:/yolo davvdg/darkflow-docker

进入了这个docker

flow --model cfg/tiny-yolo-voc.cfg --load bin/tiny-yolo-voc.weights --savepb --verbalise

Parsing ./cfg/tiny-yolo-voc.cfg Parsing cfg/tiny-yolo-voc.cfg Loading bin/tiny-yolo-voc.weights ... Successfully identified 63471556 bytes Finished in 0.219830989838s Model has a VOC model name, loading VOC labels.

Rebuild a constant version ... Traceback (most recent call last): File "/usr/local/bin/flow", line 6, in cliHandler(sys.argv) File "/usr/local/lib/python2.7/dist-packages/darkflow/cli.py", line 35, in cliHandler tfnet.savepb(); exit('Done') File "/usr/local/lib/python2.7/dist-packages/darkflow/net/build.py", line 171, in savepb os.makedirs(os.path.dirname(name), exist_ok=True) TypeError: makedirs() got an unexpected keyword argument 'exist_ok'