ValueError: Only call `softmax_cross_entropy_with_logits` with named arguments (labels=..., logits=..., ...)

在跑tensorflow事例时

$ python /Users/miao/anaconda/lib/python2.7/site-packages/tensorflow/models/image/mnist/convolutional.py

报如下错误

ValueError: Only call `softmax_cross_entropy_with_logits` with named arguments (labels=..., logits=..., ...)

需要将源码中

  loss = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(
      logits, train_labels_node))

修改为

  loss = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(
      logits=logits, labels=train_labels_node))