Traceback (most recent call last):
File "d:\Python\作业\Tensorflow代码\class6\p15_rnn_onehot_1pre1.py", line 47, in <module>
history = model.fit(x_train, y_train, batch_size=32, epochs=100, callbacks=[cp_callback])
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training.py", line 728, in fit
use_multiprocessing=use_multiprocessing)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training_v2.py", line 224, in fit
distribution_strategy=strategy)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training_v2.py", line 547, in _process_training_inputs
use_multiprocessing=use_multiprocessing)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training_v2.py", line 594, in _process_inputs
steps=steps)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training.py", line 2433, in _standardize_user_data
self._compile_from_inputs(all_inputs, y_input, x, y)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training.py", line 2668, in _compile_from_inputs
experimental_run_tf_function=self._experimental_run_tf_function)
File "E:\Python\lib\site-packages\tensorflow_core\python\training\tracking\base.py", line 457, in _method_wrapper
result = method(self, *args, **kwargs)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training.py", line 343, in compile
endpoint.create_training_target(t, run_eagerly=self.run_eagerly)
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\engine\training.py", line 3038, in create_training_target
self.loss_fn, K.dtype(self.output))
File "E:\Python\lib\site-packages\tensorflow_core\python\keras\backend.py", line 1249, in dtype
return x.dtype.base_dtype.name
AttributeError: 'NoneType' object has no attribute 'dtype'
'NoneType' object has no attribute 'dtype'，没有dtype属性，是不是版本问题呢？
'NoneType' object has no attribute 'dtype'
这句话报错是指你的数据没有都进去，也就是报错那行 history = model.fit(x_train, y_train, batch_size=32, epochs=100, callbacks=[cp_callback])，这里面的x或者y是空的，数据没有读入。
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这个应该是numpy版本的问题，换个版本试试