Anaconda更新失败 HTTP None None for url

https://blog.csdn.net/qq_27576655/article/details/70667046

Anaconda更新失败

输入命令：conda create -n tensorflow python=3.5.2 
Fetching package metadata …..

显示错误信息： 
CondaHTTPError: HTTP None None for url https://conda.anaconda.org/anaconda-fusion/win-64/repodata.json 
Elapsed: None

An HTTP error occurred when trying to retrieve this URL. 
HTTP errors are often intermittent, and a simple retry will get you on your way. 
ConnectionError(MaxRetryError(‘HTTPSConnectionPool(host=\’conda.anaconda.org\’, port=443): Max retries exceeded with url: /anaconda-fusion/win-64/repodata.json (Caused by ReadTimeoutError(“HTTPSConnectionPool(host=\’conda.anaconda.org\’, port=443): Read timed out. (read timeout=9.15)”,))’,),)

解决办法：

查看配置信息 输入命令：conda config –show 
显示如下信息： 
add_anaconda_token: True 
add_pip_as_python_dependency: True 
allow_softlinks: True 
always_copy: False 
always_softlink: False 
always_yes: False 
auto_update_conda: True 
binstar_upload: None 
changeps1: True 
channel_alias: https://conda.anaconda.org 
channel_priority: True 
channels: 
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/ 
- defaults 
client_ssl_cert: 
client_ssl_cert_key: 
create_default_packages: [] 
debug: False 
default_channels: 
- https://repo.continuum.io/pkgs/free 
- https://repo.continuum.io/pkgs/r 
- https://repo.continuum.io/pkgs/pro 
- https://repo.continuum.io/pkgs/msys2 
disallow: [] 
envs_dirs: 
- C:\Anaconda3\envs 
- C:\Users\surpass\AppData\Local\conda\conda\envs 
- C:\Users\surpass.conda\envs 
json: False 
offline: False 
proxy_servers: {} 
quiet: False 
shortcuts: True 
show_channel_urls: True 
ssl_verify: True 
track_features: [] 
update_dependencies: True 
use_pip: True 
verbosity: 0

将上述显示的配置信息-defaults所在行删除即可，因此要找到配置文件.condarc的路径 
输入命令： conda - -help

显示信息如下： 
Options:

positional arguments: 
command 
info Display information about current conda install. 
help Displays a list of available conda commands and their help 
strings. 
list List linked packages in a conda environment. 
search Search for packages and display their information. The input 
is a Python regular expression. To perform a search with a 
search string that starts with a -, separate the search from 
the options with –, like ‘conda search – -h’. A * in the 
results means that package is installed in the current 
environment. A . means that package is not installed but is 
cached in the pkgs directory. 
create Create a new conda environment from a list of specified 
packages. 
install Installs a list of packages into a specified conda 
environment. 
update Updates conda packages to the latest compatible version. This 
command accepts a list of package names and updates them to 
the latest versions that are compatible with all other 
packages in the environment. Conda attempts to install the 
newest versions of the requested packages. To accomplish 
this, it may update some packages that are already installed, 
or install additional packages. To prevent existing packages 
from updating, use the –no-update-deps option. This may 
force conda to install older versions of the requested 
packages, and it does not prevent additional dependency 
packages from being installed. If you wish to skip dependency 
checking altogether, use the ‘–force’ option. This may 
result in an environment with incompatible packages, so this 
option must be used with great caution. 
upgrade Alias for conda update. See conda update –help. 
remove Remove a list of packages from a specified conda environment. 
uninstall Alias for conda remove. See conda remove –help. 
config Modify configuration values in .condarc. This is modeled 
after the git config command. Writes to the user .condarc 
file (C:\Users\surpass.condarc) by default. 
clean Remove unused packages and caches. 
package Low-level conda package utility. (EXPERIMENTAL)

在上面显示信息中找到config那一行（加黑的） 后面的描述信息告诉了你的.condarc文件的路径，用记事本打开并删除-defaults那一行即可。