errors_impl.AlreadyExistsError: Another metric with the same name already exists.
今天在导包keras包时，总是报上面这个错误，说已经keras文件名重复
import keras也不行。
from tensorflow import keras
from tensorflow.keras.applications.vgg16 import VGG16网上查询各种方法，最后检查我安装的tensorflow-gpu 2.6.0，默认keras 2.8.0
把keras2.8.0版本降到2.6.0解决
(tensorflowgpu) C:\Windows\system32>pip uninstall keras
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
Found existing installation: keras 2.8.0
Uninstalling keras-2.8.0:
Would remove:
c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages\keras-2.8.0.dist-info\*
c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages\keras\*
Proceed (Y/n)? y
Successfully uninstalled keras-2.8.0重新安装
(tensorflowgpu) C:\Windows\system32>pip install keras==2.6.0 -i https://pypi.tuna.tsinghua.edu.cn/simple
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting keras==2.6.0
Downloading https://pypi.tuna.tsinghua.edu.cn/packages/5a/38/04d9b7fb53acdf861df2c4505fa96b06c779817a511e94b8882d284ba360/keras-2.6.0-py2.py3-none-any.whl (1.3 MB)
|████████████████████████████████| 1.3 MB 501 kB/s
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
Installing collected packages: keras
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
Successfully installed keras-2.6.0
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
WARNING: Ignoring invalid distribution -eras (c:\programdata\anaconda3\envs\tensorflowgpu\lib\site-packages)
(tensorflowgpu) C:\Windows\system32>参考
https://blog.csdn.net/mmdbhs/article/details/121169727
https://blog.csdn.net/mmdbhs/article/details/121169727