TensorFlow: 2 Errors Caused by Old Version

TypeError: Tensor objects are only iterable when eager execution is enabled. To iterate over this tensor use tf.map_fn.

出错代码：

shape = tf.cast(tf.shape(img)[:-1], tf.float32)
long_dim = max(shape) #error here

AttributeError: module 'tensorflow' has no attribute 'optimizers'

出错代码：

opt = tf.optimizers.Adam(learning_rate=0.01, beta_1=0.99, epsilon=1e-1)

在Pycharm上装的tensorflow的版本是v1 (1.14.0)

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将代码 tf.optimizers 改为 tf.keras.optimizers

打开command line -> 输入 pip install tensorflow==2.0.0-beta1

File -> Settings -> Project - Project Interpreter -> “+”

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搜索tensorflow -> 在Specify version前打勾✔，选择2.0.0b1 -> Install Package

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