问题描述
我正在遵循此blog post并尝试复制结果。但是，我得到下面的错误。该博客写于2017年，所以可能是问题所在。我已经搜索了类似的错误，虽然可以找到它们，但无法弄清它们与这个问题的关系。有什么想法吗？
ValueError: in user code:
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py:806 train_function *
return step_function(self,iterator)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py:796 step_function **
outputs = model.distribute_strategy.run(run_step,args=(data,))
/opt/conda/lib/python3.7/site-packages/tensorflow/python/distribute/distribute_lib.py:1211 run
return self._extended.call_for_each_replica(fn,args=args,kwargs=kwargs)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/distribute/distribute_lib.py:2585 call_for_each_replica
return self._call_for_each_replica(fn,args,kwargs)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/distribute/distribute_lib.py:2945 _call_for_each_replica
return fn(*args,**kwargs)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py:789 run_step **
outputs = model.train_step(data)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py:757 train_step
self.trainable_variables)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py:2737 _minimize
trainable_variables))
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/optimizer_v2/optimizer_v2.py:562 _aggregate_gradients
filtered_grads_and_vars = _filter_grads(grads_and_vars)
/opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/optimizer_v2/optimizer_v2.py:1271 _filter_grads
([v.name for _,v in grads_and_vars],))
ValueError: No gradients provided for any variable: ['dense_4/kernel:0','dense_4/bias:0','dense_5/kernel:0','dense_5/bias:0','dense_6/kernel:0','dense_6/bias:0','dense_7/kernel:0','dense_7/bias:0'].
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
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