Why can't I install any gems on my Mac?

Question

I tried doing gem install for just about any gem and I have been getting errors. I think I need to reset and or update something on my computer but not sure what.

Here is some of the command line code errors:

ERROR:  Could not find a valid gem 'multi_json' (>= 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://s3.amazonaws.com/production.s3.rubygems.org/latest_specs.4.8.gz)

ERROR:  Could not find a valid gem 'cowsay' (>= 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://s3.amazonaws.com/production.s3.rubygems.org/latest_specs.4.8.gz)

sudo gem install rubygems-update
Password:
ERROR:  Could not find a valid gem 'rubygems-update' (>= 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://s3.amazonaws.com/production.s3.rubygems.org/latest_specs.4.8.gz)

Does anyone know what I need to do to fix this? I got a new computer and was wondering if I need to set up the user differently or something?

Answer 1

我有同样的问题，以上用户的解决方案为我工作。

rvm osx-ssl-certs update all

Answer 2

There seems to be this common issue lately. If you're on a Mac, try doing this if you installed via RVM:

rvm osx-ssl-certs update all

Answer 3

或者，您可以使用以下命令添加不安全的ruby源：

sudo gem sources -a http://rubygems.org

Answer 4

For those that arent using rvm, but are using homebrew:

brew tap raggi/ale
brew install openssl-osx-ca

This worked for me.