one question about BPTF

[FancyXie]

When I run the code using the dataset just like you. I get this kind of error: Traceback (most recent call last): File "F:/PycharmProjects/GraphicalModelForRecommendation-master/main.py", line 20, in gmrec.run() File "F:\PycharmProjects\GraphicalModelForRecommendation-master\GMRec.py", line 50, in run algorithm.run() File "F:\PycharmProjects\GraphicalModelForRecommendation-master\cf_rating\BPTF.py", line 145, in run self._init_model() File "F:\PycharmProjects\GraphicalModelForRecommendation-master\cf_rating\BPTF.py", line 41, in _init_model self.predictions = dok_matrix((self.user_num, self.item_num, self.time_num)) File "D:\Program Files\Anaconda2\lib\site-packages\scipy\sparse\dok.py", line 106, in init raise TypeError('expected rank <=2 dense array or matrix') TypeError: expected rank <=2 dense array or matrix

Can you help me to fix this problem? thanks