ValueError: Input 0 is incompatible with layer flatten_2: expected min_ndim=3, found ndim=2

[liningxiao]

Total memory: 7.92GiB
Free memory: 7.28GiB
2017-12-07 14:19:22.480859: I tensorflow/core/common_runtime/gpu/gpu_device.cc:976] DMA: 0
2017-12-07 14:19:22.480867: I tensorflow/core/common_runtime/gpu/gpu_device.cc:986] 0: Y
2017-12-07 14:19:22.480876: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1045] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX 1070, pci bus id: 0000:02:00.0)
Model loaded.
Traceback (most recent call last):
File "finetune_inceptionv3.py", line 38, in
top_model.add(Flatten(input_shape=base_model.output_shape[1:]))
File "/usr/local/lib/python2.7/dist-packages/keras/models.py", line 464, in add
layer(x)
File "/usr/local/lib/python2.7/dist-packages/keras/engine/topology.py", line 559, in call
self.assert_input_compatibility(inputs)
File "/usr/local/lib/python2.7/dist-packages/keras/engine/topology.py", line 474, in assert_input_compatibility
str(K.ndim(x)))
ValueError: Input 0 is incompatible with layer flatten_2: expected min_ndim=3, found ndim=2

what problem happen?

[alyato]

@liningxiao
i can't import the resnet.ImportError: No module named resnet
Do you meet this question? thanks