Ubuntu finds this directory file
anaconda3/envs/yourEnv/lib/python3.7/site-packages/tensorflow_core/python/keras/utils/vis_utils.py
Windows finds this directory file
Anaconda\envs\yourEnv\Lib\site-packages\tensorflow\python\keras\utils\vis_utils.py
The problem lies in the following function in the vis_utils.py file
def format_shape(shape):
return str(shape).replace(str(None), '?')
Change directly to:
def format_shape(shape):
return str(shape).replace(str(None), 'None')
Reference from: https://stackoverflow.com/questions/63101709/keras-plot-model-replace-the-question-mark-by-none-in-the-model-architecture
I shall? Changed to ABC, you can take a look at the result graph: