问题
I use Anaconda Navigator for my machine learning experiments. Recently, I have started getting this strange SSL error no matter what I try to install using conda prompt. The error is SSL error. I am posting the error message that I get
Solving environment: failed
CondaHTTPError: HTTP 000 CONNECTION FAILED for url https://repo.anaconda.com/pkgs/free/linux-64/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.
SSLError(MaxRetryError('HTTPSConnectionPool(host=\'repo.anaconda.com\', port=443): Max retries exceeded with url: /pkgs/free/linux-64/repodata.json.bz2 (Caused by SSLError(SSLError("bad handshake: Error([(\'SSL routines\', \'ssl3_get_server_certificate\', \'certificate verify failed\')],)",),))',),)
I have an institutional proxy server; the credentials, apt.conf file etc are all OK.
Even then I am not able to install any package using conda.
Interestingly, I have installed numerous packages using conda prompt and I never faced any such error until recently. Also, I am able to follow the links (using the browser) given in the error message which means that the proxy is not blocking the site.
I was asked to use
conda config --set ssl_verify True
but even this did not help. Any help ?
I even entered the proxy server details as given in HTTP error while using conda for installation of any packages
回答1:
Try copying these files from Anaconda3/Library/bin to Anaconda3/DLLs :
libcrypto-1_1-x64.dll
libssl-1_1-x64.dll
回答2:
When I had an SSL error related to conda on my work laptop behind a firewall, I had to set ssl_verify to false to get it to work.
回答3:
The following steps worked for me :
Use this command to see proxy_servers
1)conda config --show
This will remove saved proxy servers from anaconda configuration.
2)conda config --remove-key proxy_servers
3)conda clean --source-cache
Hope this helps you..
来源：https://stackoverflow.com/questions/51892938/ssl-error-while-installing-any-package-from-conda-prompt