Unable to download data from https:/rubygems.org
when I stall Ruby DevKit by following https://github.com/oneclick/rubyinsta...
C:\DevKit>gem install json --platform=ruby
ERROR: Could not find a valid gem '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://api.rubygems.org/specs.4.8.gz)
How do deal with this problem?