201_classify_text_with_bert_tfhub_Kor.ipynb 오류

안녕하세요?
201_classify_text_with_bert_tfhub_Kor.ipynb 소스 수행 시 아래와 같은 오류가 납니다.
구글 colab gpu에서 돌리고 있습니다. (오류 이미지도 같이 첨부합니다.)

왜 오류가 나는지 답변 부탁 드립니다.

ValueError                                Traceback (most recent call last)

<ipython-input-17-3b4b1d94b15e> in <cell line: 1>()
----> 1 classifier_model = build_classifier_model()
      2 bert_raw_result = classifier_model(tf.constant(text_test))
      3 
      4 print(bert_raw_result)
      5 print(tf.sigmoid(bert_raw_result))

7 frames

/usr/local/lib/python3.10/dist-packages/keras/src/backend/common/keras_tensor.py in __array__(self)
     59 
     60     def __array__(self):
---> 61         raise ValueError(
     62             "A KerasTensor is symbolic: it's a placeholder for a shape "
     63             "an a dtype. It doesn't have any actual numerical value. "

ValueError: Exception encountered when calling layer 'preprocessing' (type KerasLayer).

A KerasTensor is symbolic: it's a placeholder for a shape an a dtype. It doesn't have any actual numerical value. You cannot convert it to a NumPy array.

Call arguments received by layer 'preprocessing' (type KerasLayer):
  • inputs=<KerasTensor shape=(None,), dtype=string, sparse=None, name=text>
  • training=None