Validating and evaluating the pretrained model is not working.

[BaccarAla90]

Hello @liangs111!

I am getting AttributeError: 'OwnedIterator' object has no attribute 'string_handle' when running python main.py --validate-mode, and RuntimeError: tf.placeholder() is not compatible with eager execution. when running python main.py --eval-mode.

Great work by the way. Thank you for your time!

[rongduo]

I came across the same problem when I ran the codes in a conda environment with python=3.6 and tensorflow-gpu=2.2. After I created a new environment following the instructions in the '''readme''' and ran the codes again, the codes can be run without this problem.