Rubygems: Ruby 2.3.1 Unable to download data from https://rubygems.org/ - SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://api.rubygems.org/specs.4.8.gz)

[stevelake]

I'm having a problem.

My current problem is failure to install new gems: I tried installing capybara, but got...
ERROR: Could not find a valid gem 'capybara' (>= 0), here is why:
Unable to download data from https://rubygems.org/ - SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://api.rubygems.org/specs.4.8.gz)

I've looked at the article at https://gist.github.com/luislavena/f064211759ee0f806c88#installing-using-update-packages-new but when I tried to download the certificate (AddTrustExternalCARoot-2048.pem) I got a '404 - Not Found' error

This issue is related to:

• [ ] Network problems
• [ ] Installing a library
• [ ] Publishing a library
• [ ] The command line gem
• [x] Other

Here are my current environment details:
ruby 2.3.1p112 (2016-04-26 revision 54768) [i386-mingw32] running on Windows 10

$ gem env version
2.5.1

I will abide by the code of conduct.

[stevelake]

I've fixed it: the comment by chris-morgan in issue #1745 about "Copying https://raw.githubusercontent.com/rubygems/rubygems/master/lib/rubygems/ssl_certs/index.rubygems.org/GlobalSignRootCA.pem" resolved it.

[jasontylerb]

@stevelake Thank you for sharing your fix! I'm new to Ruby and it took me a while to hunt down the fix for the SSL error. Again, thanks!

[carivera]

@stevelake Really appreciate, you shared this solution.
you saved me a couple of hours of digging the web.

Thanks!!

[leif81]

Another option is upgrading to Ruby 2.3.3, it worked without the error for me.

[vickenliu]

yeah. update ruby to 2.3.x resolve this issue.