when i run demo.py i have met this error

[hsqaihkl]

@zhreshold Hi I run you project in win 10 and then i have met this problem ，could help me?

D:\Soft\Anaconda3\python.exe C:/Users/water/Desktop/MultiCamera/SSD/mxnet-ssd-master/demo.py
Using mxnet as:
<module 'mxnet' (namespace)>
Warning: using pre-installed version of mxnet may cause unexpected error...
(export MXNET_EXAMPLE_SSD_DISABLE_PRE_INSTALLED=1) to prevent loading pre-installed mxnet.
Traceback (most recent call last):
File "C:/Users/water/Desktop/MultiCamera/SSD/mxnet-ssd-master/demo.py", line 6, in
from detect.detector import Detector
File "C:\Users\water\Desktop\MultiCamera\SSD\mxnet-ssd-master\detect\detector.py", line 6, in
from dataset.iterator import DetIter
File "C:\Users\water\Desktop\MultiCamera\SSD\mxnet-ssd-master\dataset\iterator.py", line 6, in
class DetRecordIter(mx.io.DataIter):
AttributeError: module 'mxnet' has no attribute 'io'

Process finished with exit code 1

[zhreshold]

very likely the mxnet is not correctly installed