Traceback (most recent call last):
File "/home/**/PycharmProjects/tensor2-convNets/venv/include/main.py", line 74, in <module>
train_step(images, labels)
File "/home/**/PycharmProjects/tensor2-convNets/venv/include/main.py", line 54, in train_step
predictions = model(images, training=True)
TypeError: 'NoneType' object is not callable
报错很明显啊,返回了None类型,None类型不可调用