但是,当我运行model.fit()时,总是出现一个错误: AttributeError:'NoneType‘对象没有'dtype’属性。tensorflow_core\python\keras\engine\training.py", line 3023, in create_training_target
self.loss_fn, K.dtype\anaconda\envs\tensorflow\lib\site-packages\tensor
Python36\lib\site-packages\tensorflow\python\training\optimizer.py", line 543, in _assert_valid_dtypesAttributeError: 'NoneType' object has no attribute 'dtype'
已经升级了六个。pip已成功安装tensorflow。为了达到这一点,我经历了几个步骤/升级。现在,当我尝试导入到python中时,出现了这个错误。Traceback (most recent call last):File "/Library/Python/2.7/site-packages/tensorflow/__init__.py", line 24, in <module&g