python demo_functional.py Error

[sampathweb]

Running python demo_functional.py fails with error -

    File "keras-core/keras_core/losses/loss.py", line 69, in squeeze_to_same_rank  *
        x2_rank = len(x2.shape)

    ValueError: Cannot take the length of shape with unknown rank.

[sampathweb]

The same error even if I change the model to Sequential. But all tests pass. So may be we need a integration test or update our model tests

[sampathweb]

@fchollet - Ran git bisect and the culprit seems to be 2f4f72c

[AakashKumarNain]

@sampathweb does this work?

x2_rank = len(ops.shape(x2))

[sampathweb]

That moved past the error in loss.py, but is still broken. It probably has something to do with change done in commit 2f4f72c

[AakashKumarNain]

Okay. I will look into it today

[sampathweb]

This is now resolved after the fix aa88067