gem install 无法从 ruby​​gems.org 下载

Question

When I type

gem install sass

I get the following error message

C:>gem install compass ERROR: Could not find a valid gem 'compass' (>= 0), here is why: Unable to download data from https://rubygems.org/ - SSL_connect retur ned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed ( https://rubygems.org/latest_specs.4.8.gz )

Answer 1

Use http instead of https

gem sources --remove https://rubygems.org/
gem sources -a http://rubygems.org/

Answer 2

I have experienced the same symptoms on Win7, Ruby 2.1.5 64bit - different gem, but same error message.

In my case, I had to install a new root certificate for rubygems, this link describes how:

https://gist.github.com/luislavena/f064211759ee0f806c88

The reason is that the ruby installation contains its own set of root certificates which are used when establishing secure connection with rubygems.org - but the certificate has since been changed on the server - so none of the root certificates that comes with this ruby installer can validate the server certificate. That is why you need to update the root certificate.

Answer 3

According to this post : SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/

Goto link http://rubygems.org/pages/download

Download the latest zip file
Unzip it
run "ruby setup.rb" in unzipped folder
now run gem install command

Answer 4

TL;DR Apply the official fix:

1. Download https://rubygems.org/downloads/rubygems-update-2.6.7.gem

2. Run:

    gem install --local rubygems-update-2.6.7.gem update_rubygems --no-ri --no-rdoc gem uninstall rubygems-update -x

Long version

See http://guides.rubygems.org/ssl-certificate-update/ .

Basically it adds GlobalSignRootCA. Very easy to apply, unfortunately hard to google though.

Answer 5

I also noticed issues with rubygems.org yesterday (in one environment), but your error almost sounds like an issue with a newly-installed Ruby and its SSL integration/configuration (having it locate SSL during installation, as well as the necessary certificates).

You might check out:

SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/

But if that doesn't help I recommend continued searching, as this seems to be a common problem area.

Answer 6

I fix the problem using this method:

• Go to rubygems.org and install a fresh rubygems gem

• Use the following approach: http://puu.sh/dKilg/78ccee17b6.png

http://help.rubygems.org/discussions/problems/19761-could-not-find-a-valid-gem

Answer 7

Try disabling Ipv6 on your system. If on Linux you can use these commands.

 sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1 

Answer 8

what rails do you use??

I think your problem is the version of rails.

I use:

gem 'rails', '4.1.4'
gem 'sass-rails', '~> 4.0.3'

Some times https://rubygems.org is the problem I need to change for http://rubygems.org , I think the problems is for proxy.