convert.py can't work.

[gmt710]

python(2.7) scipy(1.1.0) numpy+mkl(1.14.6) Pillow(5.3.0)

run convert.py,have an error like this: "D:\Program Files\Python27\python2.exe" D:/pythonwork/Cifar10/pythonConvertCifar-10-master/convert.py Traceback (most recent call last): File "D:/pythonwork/Cifar10/pythonConvertCifar-10-master/convert.py", line 19, in <module> Xtr = unpickle(dataName) File "D:/pythonwork/Cifar10/pythonConvertCifar-10-master/convert.py", line 12, in unpickle dict = cPickle.load(fo) cPickle.UnpicklingError: invalid load key, ''. Process finished with exit code 1

I don't know exactly how to solve this problem,can you give me some suggestion？Thanks very much!