tuple has no attribute get_shape

[Guru-prasad]

Hi,i am new to this deep learning
i am trying to execute train.py obtained from https://github.com/jocicmarko/ultrasound-nerve-segmentation/train.py

Any body there to help fix this problem, the error is in line
`` in get_unet()
67 print(conv5)
68
---> 69 up6 = concatenate([(UpSampling2D(size=(2, 2))(conv5), conv4)], axis=3)
70 conv6 = Conv2D(256, (3, 3), activation='relu', padding='same')(up6)
71 conv6 = Conv2D(256, (3, 3), activation='relu', padding='same')(conv6)

Thanks in advance