Issue in Feature Extraction.ipynb

[BhimasenPurohit]

I am running the Feature Extraction.ipynb code. I am getting this error in extractor defining code.

Code:
 extractor = keras.models.Model(
    inputs=model.input, 
    outputs=flatten_layer.output
)

---

AssertionError Traceback (most recent call last)
in ()
1 flatten_layer = model.get_layer(index=7)
----> 2 assert flatten_layer.name.startswith('flatten_')
3
4 extractor = keras.models.Model(
5 inputs=model.input,

AssertionError:

There is no clear indication of what error i am facing. Can anybody help.

[zerotas]

change the index to 6