When I type bundle half of these things don't show up

DL is deprecated, please use Fiddle
Fetching gem metadata from https://rubygems.org/.........
Fetching additional metadata from https://rubygems.org/..
Resolving dependencies...
Using rake (10.2.1)
Using i18n (0.6.9)
Using minitest (4.7.5)
Using multi_json (1.9.2)
Using atomic (1.1.16)
Using thread_safe (0.3.1)
Using tzinfo (0.3.39)
Using activesupport (4.0.4)
Using builder (3.1.4)
Using erubis (2.7.0)
Using rack (1.5.2)
Using rack-test (0.6.2)
Using actionpack (4.0.4)
Using mime-types (1.25.1)
Using polyglot (0.3.4)
Using treetop (1.4.15)
Using mail (2.5.4)
Using actionmailer (4.0.4)
Using activemodel (4.0.4)
Using activerecord-deprecated_finders (1.0.3)
Using arel (4.0.2)
Using activerecord (4.0.4)
Using bundler (1.5.3)
Using mini_portile (0.5.3)

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    C:/Ruby200-x64/bin/ruby.exe extconf.rb
checking for libxml/parser.h... no
-----
libxml2 is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=C:/Ruby200-x64/bin/ruby
        --with-zlib-dir
        --without-zlib-dir
        --with-zlib-include
        --without-zlib-include=${zlib-dir}/include
        --with-zlib-lib
        --without-zlib-lib=${zlib-dir}/lib
        --with-iconv-dir
        --without-iconv-dir
        --with-iconv-include
        --without-iconv-include=${iconv-dir}/include
        --with-iconv-lib
        --without-iconv-lib=${iconv-dir}/lib
        --with-xml2-dir
        --without-xml2-dir
        --with-xml2-include
        --without-xml2-include=${xml2-dir}/include
        --with-xml2-lib
        --without-xml2-lib=${xml2-dir}/lib
        --with-xslt-dir
        --without-xslt-dir
        --with-xslt-include
        --without-xslt-include=${xslt-dir}/include
        --with-xslt-lib
        --without-xslt-lib=${xslt-dir}/lib
        --with-libxslt-config
        --without-libxslt-config
        --with-pkg-config
        --without-pkg-config
        --with-libxml-2.0-config
        --without-libxml-2.0-config
        --with-pkg-config
        --without-pkg-config
        --with-libiconv-config
        --without-libiconv-config
        --with-pkg-config
        --without-pkg-config


Gem files will remain installed in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/nokogiri-1.6.1 for inspection.
Results logged to C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/nokogiri-1.6.1/ext/nokogiri/gem_make.out
An error occurred while installing nokogiri (1.6.1), and Bundler cannot
continue.