在Windows上的ruby中获取SSL错误

I get the following error:

我得到以下错误:

C:\Users\user\Desktop\folder>ruby exchange_rate.rb
C:/Ruby23-x64/lib/ruby/2.3.0/net/http.rb:933:in `connect_nonblock': SSL_connect
returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify fai
led (OpenSSL::SSL::SSLError)
        from C:/Ruby23-x64/lib/ruby/2.3.0/net/http.rb:933:in `connect'
        from C:/Ruby23-x64/lib/ruby/2.3.0/net/http.rb:863:in `do_start'
        from C:/Ruby23-x64/lib/ruby/2.3.0/net/http.rb:852:in `start'
        from exchange_rate.rb:55:in `<main>'
C:\User