local variable 'scipy_ndimage' referenced before assignment

[zhanghui186]

When I run the command python virtualice.py -s 1TIM -n 10, I encounter the following error:
Traceback (most recent call last):
File "virtualice.py", line 4240, in
main()
File "virtualice.py", line 4167, in main
args = parse_arguments(start_time_formatted)
File "virtualice.py", line 548, in parse_arguments
ndimage = scipy_ndimage
UnboundLocalError: local variable 'scipy_ndimage' referenced before assignment
Could anyone suggest a solution? Thank you!