How to install sqlite3 on window ruby?

Question

ruby

So I am trying to install sqlite3 database.
Here are the steps I follow:
1) Download and install DevKit for Ruby (rubyinstaller.org)
2) Open the standard windows console and write:

cd c:/dev/
ruby dk.rb
ruby dk.rb install

3) Download and install sqlite3 (sqlite.org)
4) Open DevKit console and write
cd c:/sqlite3/

./configure
make
make install

gem install sqlite3 --platform=ruby -- --with-sqlite3-include=/c:/sqlite3/ --with-sqlite3-lib=/c:/sqlite3/.libs/

They reply to me:

ERROR: Could not find a valid gem 'sqlite3' ()= 0), here is why:
       Unableto 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)

Answer 1

--source http://rubygems.org
or
else you can try to manually reinstall RubyGems
https://rubygems.org/pages/download
1) download the archive
2) unzip
3) go to the resulting folder
4) run "ruby setup.rb"