SSL Error while installing any package from conda prompt

Question

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

score 29 · Answer 1 · answered May 12 '19 at 20:19

29

Try copying these files from Anaconda3/Library/bin to Anaconda3/DLLs :

libcrypto-1_1-x64.dll

libssl-1_1-x64.dll

answered May 12 '19 at 20:19

ColdCold

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this worked on Windows 11 on 11/21/2022 – user391838 Nov 21 '22 at 23:46
Didn't work for me on Windows 11. – Roald Jul 04 '23 at 10:01
Worked for me on Windows 10 in July 2023 – whege Jul 13 '23 at 19:56
Great, even works for Win 7 – The August Aug 22 '23 at 06:48

score 4 · Answer 2 · answered Feb 10 '19 at 22:47

4

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.

answered Feb 10 '19 at 22:47

floydn

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How to set it to false? – Gank Feb 24 '19 at 14:36
conda config --set ssl_verify False. But not work: C:\Users\gz000069>conda install -c menpo dlib Solving environment: failed CondaHTTPError: HTTP 000 CONNECTION FAILED for url Elapsed: - An HTTP error occurred when trying to retrieve this URL. HTTP errors are often intermittent, and a – Gank Feb 24 '19 at 14:37

score 4 · Answer 3 · answered Mar 08 '22 at 07:44

4

This should do the job.

conda config --set ssl_verify False

answered Mar 08 '22 at 07:44

laplace

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Simple but efficient solution! Well done! – Nico May 01 '23 at 14:01
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This solution opens you up to attacks, do not use it. There are alternative, secure solutions that will work. – ketza May 19 '23 at 13:10

score 0 · Answer 4 · edited Feb 08 '23 at 14:05

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The following steps worked for me:

Use this command to see proxy_servers

conda config --show

This will remove saved proxy servers from anaconda configuration.

conda config --remove-key proxy_servers

conda clean --source-cache

Hope this helps you.

edited Feb 08 '23 at 14:05

Mark Rotteveel

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answered Mar 29 '19 at 11:02

pallavi sangapu - Intel

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score 0 · Answer 5 · answered Oct 20 '22 at 13:22

0

This is due to .dll error

go to location where you've install anaconda3>Library>bin. search and copy following dll files

libcrypto-1_1-x64.dll libssl-1_1-x64.dll

and paste to anaconda3>DLLs.

then restart your pc.

issue will get resolved.

answered Oct 20 '22 at 13:22

Mahesh Dedge

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SSL Error while installing any package from conda prompt

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