How To Install Openproject On Windows

I’m trying to install openProject on Windows 7 following this guide. But running bundle install —without rmagick returns error Gem files will remain installed in C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/mysql2-0.3.17 for inspection. An error occurred while installing mysql2 (0.3.17), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.17'` succeeds before bundling. I see that mysql2 (0.3.18 ruby x86-mingw32) is installed by gem list command. Any idea how to fix this?
I cannot install openproject in my system, i have followed all the steps mentioned in the openproject wiki document I have Windows 7 64 bit and installed ruby using railsinstaller 2.2.4 from mysql mysql-5.6.21-winx64 from mysql 32 bit client from openproject from git Followed document from openproject. Film impact transition pack 1 full. I am getting following error,kindly guide to get rid of this issue.
I am very new to Ruby C: Users Administrator openproject>bundle exec rake db:create:all require 'rails/all'. 2.309s Bundler.require.
Install the leading open source project management and collaboration. Able to run the Docker image, or use the unofficial Windows stack provided by Bitnami. Bitnami OpenProject Stack Installers. Bitnami native installers automate the setup of a Bitnami application stack on Windows, Mac OS and Linux. Each installer.

Rake aborted! NoMethodError: undefined method `dlopen' for Fiddle:Module C:/Users/Administrator/openproject/config/application.rb:68:in `block in ' C:/Users/Administrator/openproject/config/application.rb:44:in `block in bench' C:/Users/Administrator/openproject/config/application.rb:43:in `bench' C:/Users/Administrator/openproject/config/application.rb:67:in `' C:/Users/Administrator/openproject/Rakefile:33:in `require' C:/Users/Administrator/openproject/Rakefile:33:in `' (See full trace by running task with --trace).