郑泽宇出版的tensorflow中minst代码的错误

from tensorflow.examples.tutorials.mnist import input_data
mnist=input_data.read_data_sets('/path/to/MNIST_data/',one_hot=True)
print('Training data size:',mnist.train.num_examples)
print('Validating data size:',mnist.validation.num_examples)
print('Testing data size:',mnist.test.num_example)
print('Example training data:',mnist.train.images[0])
print('Example training data label:',mnist.train.labels[0])

显示错误为：ERROR! Session/line number was not unique in database. History logging moved to new session 52

'/path/to/MNIST_data/' 这下面的数据文件是否内容正确

你把'/path/to/MNIST_data' 改成‘/tmp/data’ 就好了