Question

我根据Tensorflow的官方教程安装了环境，但是示例代码无法正确运行：

安装anaconda
通过conda create --name tensorflow python=3.7.4安装python
通过pip install --upgrade --ignore-installed tensorflow安装tensorflow
创建一个新项目并选择我已安装的现有解释器
在pycharm中运行代码

我错过了任何一步吗？

import tensorflow as tf
import os
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
hello = tf.constant("hello world")
sess = tf.compat.v1.Session()
print(sess.run(hello))

回溯（最近通话最近一次）：

  File "E:/dp/dp_01/test.py", line 6, in <module>
    print(sess.run(hello))
  File "D:\Users\46173\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow_core\python\client\session.py", line 956, in run
    run_metadata_ptr)
  File "D:\Users\46173\Anaconda3\envs\tensorflow\lib\site-packages\tensorflow_core\python\client\session.py", line 1105, in _run
    raise RuntimeError('The Session graph is empty.  Add operations to the '
RuntimeError: The Session graph is empty.  Add operations to the graph before calling run().

Answer 1

事情是

默认情况下，Tensorflow核心r2.0已启用急切执行。因此，无需更改我们只需要更改我们的代码

with tf.compat.v1.Session() as sess:
  os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
  hello = tf.constant("hello world")
  print(sess.run(hello))

我根据官方的Tensorflow教程安装了环境，但是示例代码运行不正确

1 个答案: