How to uninstall ruby-oci8

The ruby gem that I am using require ruby-oci8 version 2+. However it seems that my machine already have ruby-oci8 version 1.0.0. But t开发者_运维问答his I can't uninstall.

I've run gem uninstall ruby-oci8 succesfully. Then, using irb type

require 'oci8'
=> true
OCI8::VERSION
=> "1.0.0"

How to clean up my Windows machine from ruby-oci v1.0.0 ?

Thanks.

http://ruby-oci8.rubyforge.org/en/FAQ_uninstall.html

Delete 3 files as mentioned in the link above