Problem with add plugins

Hello! I use bitnami-redmine-2.1.4-0 on Win7 x86. It works well, but i want to add some plugins,for example http://www.redmine.org/plugins/redmine_knowledgebase

I copy plugins into "C:\Bitnami\redmine-2.1.4-0\apps\redmine\htdocs\plugins" and launch "Use Bitnami Redmine Stack", and log:

C:\BitNami\redmine-2.1.4-0>cd .\apps\redmine\htdocs\
C:\BitNami\redmine-2.1.4-0\apps\redmine\htdocs>rake redmine:plugins:migrate RAIL
S_ENV=production
<[31mCould not find gem 'ya2yaml (>= 0) x86-mingw32' in the gems available on th
is machine.<[0m
<[33mRun bundle install to install missing gems.<[0m
C:\BitNami\redmine-2.1.4-0\apps\redmine\htdocs>

So, i run "bundle install". Log:

C:\\BitNami\\redmine-2.1.4-0\\apps\\redmine\\htdocs>rake redmine:plugins:migrate RAIL
S_ENV=production
<[31mCould not find gem 'ya2yaml (>= 0) x86-mingw32' in the gems available on th
is machine.<[0m
<[33mRun `bundle install` to install missing gems.<[0m

C:\\BitNami\\redmine-2.1.4-0\\apps\\redmine\\htdocs>bundle install
Fetching gem metadata from http://rubygems.org/.........
Fetching gem metadata from http://rubygems.org/.........
Fetching gem metadata from http://rubygems.org/..
Fetching gem metadata from http://rubygems.org/..
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.3.6)
Using activesupport (3.2.8)
Using builder (3.0.0)
Using activemodel (3.2.8)
Using erubis (2.7.0)
Using journey (1.0.4)
Using rack (1.4.1)
Using rack-cache (1.2)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.1.3)
Using actionpack (3.2.8)
Using mime-types (1.19)
Using polyglot (0.3.3)
Using treetop (1.4.10)
Using mail (2.4.4)
Using actionmailer (3.2.8)
Using arel (3.0.2)
Using tzinfo (0.3.33)
Using activerecord (3.2.8)
Using activeresource (3.2.8)
Using bundler (1.2.1)
Using rack-ssl (1.3.2)
Using json (1.7.5)
Using rdoc (3.12)
Using thor (0.15.4)
Using railties (3.2.8)
Using rails (3.2.8)
Installing acts-as-taggable-on (2.3.3)
Using coderay (1.0.6)
Using daemons (1.1.8)
Using eventmachine (1.0.0)
Using jquery-rails (2.0.3)
Installing mysql2 (0.3.11)
Using net-ldap (0.3.1)
Using ruby-openid (2.1.8)
Using rack-openid (1.3.1)
Using rmagick (2.13.1)
Using thin (1.3.1)
Installing ya2yaml (0.31)
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem
is installed.

C:\\BitNami\\redmine-2.1.4-0\\apps\\redmine\\htdocs>rake redmine:plugins:migrate RAIL
S_ENV=production
rake aborted!
Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the
client library is 5.5.28.

Tasks: TOP => redmine:plugins:migrate => environment
(See full trace by running task with --trace)

C:\\BitNami\\redmine-2.1.4-0\\apps\\redmine\\htdocs>

So, restart all Servers, all have status running, but Thin_redmine and Thin_redmine2 have status "stopped".

What am i doing wrong?

P.S. thanks to all, i am sorry for my English.