Solving environment: failed conda all InvalidVersionSpecError: Invalid version spec: =2.7

1 问题描述

执行：conda update --all命令时候出现了

Solving environment: failed

InvalidVersionSpecError: Invalid version spec: =2.7

2 解决方案

修改.condar文件内容为：

channels:
  - defaults
show_channel_urls: true
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
custom_channels:
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
 

Anaconda 镜像使用帮助https://mirror.tuna.tsinghua.edu.cn/help/anaconda/

3 然后

（1）pip uninstall tensorflow卸载tensorflow

（2）conda update --all

（3）conda create -n cat python=3.7

（4）conda install tensorflow-gpu=1.14.0

（5）安装完毕

问题解决。