AttributeError: module 'tensorflow_core._api.v2.train' has no attribute 'Optimizer' when importing BERT

问题

I'm am getting this error just in the being of importing my packages. I haven't been able to find the correct remedy to fix the issue. Any help is greatly appreciated.

From what I can tell it looks to maybe be a Tensorflow issue?

from sklearn.model_selection import train_test_split
import pandas as pd
import tensorflow as tf
import tensorflow_hub as hub
from datetime import datetime

import bert
from bert import run_classifier
from bert import optimization
from bert import tokenization

回答1:

You seem to have TensorFlow 2.x while the bert module uses TensorFlow 1.x. You can verify here that Tensorflow 1.x has the tf.train.Optimizer module while according to this, Tensorflow 2.x has no such module.

Make sure you install the Tensorflow version that bert requires

来源：https://stackoverflow.com/questions/60835983/attributeerror-module-tensorflow-core-api-v2-train-has-no-attribute-optimiz