'KerasTensor' object has no attribute '_id'

This error message typically occurs in Keras when you are trying to access the `_id` attribute of a `KerasTensor` object, but the attribute does not exist.

It is possible that you are trying to access the `_id` attribute of a `KerasTensor` object that was not created with an `_id` attribute. In this case, you can try creating a new `KerasTensor` object with the desired `_id` attribute.

Alternatively, it is possible that there is a bug in your code or in the Keras library that is causing this error. In this case, you may need to debug your code or report the bug to the Keras development team.