今天使用Anaconda下载和更新都报错：
$ conda update anaconda-navigator
Solving environment: failed
# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<
`$ C:\Users\Z.Zhou\Anaconda3\Scripts\conda update anaconda-navigator`
environment variables:
CIO_TEST=<not set>
CONDA_ROOT=C:\Users\Z.Zhou\Anaconda3
EXEPATH=C:\Program Files\Git\bin
HOMEPATH=\Users\Z.Zhou
MOZ_PLUGIN_PATH=C:\Program Files (x86)\Foxit Software\Foxit Reader\plugins\
PATH=C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users
\Z.Zhou\bin;C:\Rtools\bin;C:\ProgramData\Oracle\Java\javapath;C:\Windo
ws\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\Wi
ndowsPowerShell\v1.0\;C:\Program Files (x86)\NVIDIA
Corporation\PhysX\Common;C:\Program
Files\MATLAB\R2014a\runtime\win64;C:\Program
Files\MATLAB\R2014a\bin;C:\Program Files\MATLAB\R2014a\polyspace\bin;C
:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\Syst
em32\WindowsPowerShell\v1.0\;C:\Program
Files\Intel\WiFi\bin\;C:\Program Files\Common
Files\Intel\WirelessCommon\;C:\Program Files (x86)\Microsoft SQL
Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files
(x86)\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files
(x86)\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files
(x86)\Microsoft SQL Server\130\Tools\Binn\ManagementStudio\;C:\Program
Files (x86)\Microsoft SQL Server\100\Tools\Binn\;C:\Program
Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft
SQL Server\100\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL
Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files
(x86)\Microsoft Visual Studio
9.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft
SQL Server\100\DTS\Binn\;C:\Program Files\Git\cmd;C:\Program
Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\Z.Zhou\Ana
conda3;C:\Users\Z.Zhou\Anaconda3\Library\mingw-w64\bin;C:\Users\Z.Zhou
\Anaconda3\Library\usr\bin;C:\Users\Z.Zhou\Anaconda3\Library\bin;C:\Us
ers\Z.Zhou\Anaconda3\Scripts;C:\Users\Z.Zhou\AppData\Local\Microsoft\W
indowsApps;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Fi
les\Intel\WirelessCommon\;C:\Users\Z.Zhou\AppData\Local\GitHubDesktop\
bin;C:\Users\Z.Zhou\AppData\Local\Microsoft\WindowsApps;C:\Program
Files\Microsoft VS Code\bin
PSMODULEPATH=C:\Program Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\Windows
PowerShell\v1.0\Modules;C:\Program Files (x86)\Microsoft SQL
Server\130\Tools\PowerShell\Modules\
REQUESTS_CA_BUNDLE=<not set>
SSL_CERT_FILE=<not set>
active environment : None
user config file : C:\Users\Z.Zhou\.condarc
populated config files : C:\Users\Z.Zhou\.condarc
conda version : 4.5.4
conda-build version : 3.10.5
python version : 3.6.5.final.0
base environment : C:\Users\Z.Zhou\Anaconda3 (writable)
channel URLs : https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/win-64
https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/noarch
https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/win-64
https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch
https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
https://repo.anaconda.com/pkgs/main/win-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/free/win-64
https://repo.anaconda.com/pkgs/free/noarch
https://repo.anaconda.com/pkgs/r/win-64
https://repo.anaconda.com/pkgs/r/noarch
https://repo.anaconda.com/pkgs/pro/win-64
https://repo.anaconda.com/pkgs/pro/noarch
https://repo.anaconda.com/pkgs/msys2/win-64
https://repo.anaconda.com/pkgs/msys2/noarch
package cache : C:\Users\Z.Zhou\Anaconda3\pkgs
C:\Users\Z.Zhou\AppData\Local\conda\conda\pkgs
envs directories : C:\Users\Z.Zhou\Anaconda3\envs
C:\Users\Z.Zhou\AppData\Local\conda\conda\envs
C:\Users\Z.Zhou\.conda\envs
platform : win-64
user-agent : conda/4.5.4 requests/2.18.4 CPython/3.6.5 Windows/10 Windows/10.0.16299
administrator : False
netrc file : None
offline mode : False
V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/noarch/repodata.json.bz2>
Elapsed: -
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.
If your current network has https://www.anaconda.com blocked, please file
a support request with your network engineering team.
ConnectionError(MaxRetryError("HTTPSConnectionPool(host='repo.anaconda.com', port=443): Max retries exceeded with url: /pkgs/main/noarch/repodata.json.bz2 (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x00000231CDC835C0>: Failed to establish a new connection: [Errno 11003] getaddrinfo failed',))",),)
A reportable application error has occurred. Conda has prepared the above report.
If submitted, this report will be used by core maintainers to improve
future releases of conda.
Would you like conda to send this report to the core maintainers?
[y/N]: y
Upload did not complete.
Thank you for helping to improve conda.
Opt-in to always sending reports (and not see this message again)
by running
$ conda config --set report_errors true
一直提示提交错误报告，然并卵。
这可能是防火墙问题，使用命令
conda config --set ssl_verify false
搞定。
参考: https://stackoverflow.com/questions/42563757/conda-update-condahttperror-http-none
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