Keras error

[JhonAndersonVelasco]

Hi
I am running deep_dqn_rl_trader.py and get the following error:

TypeError: Keras symbolic inputs/outputs do not implement __len__. You may be trying to pass Keras symbolic inputs/outputs to a TF API that does not register dispatching, preventing Keras from automatically converting the API call to a lambda layer in the Functional Model. This error will also get raised if you try asserting a symbolic input/output directly.

What can I do to resolve it?

[SammarieoBrown]

I am getting the same error, did you figure out how to fix it?