I installed rails on my computer, made under this instruction -https://coderwall.com/p/auvm9g
When installing a new project - rails new my_project -d mysql
Installing mysql2 (0.3.13) Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/albert/.rvm/rubies/ruby-1.9.3-head/bin/ruby extconf.rb checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for rb_hash_dup()... yes checking for rb_intern3()... yes checking for mysql.h... no checking for mysql/mysql.h... no ----- mysql.h is missing. please check your installation of mysql and try again. ----- *** 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 --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=/Users/albert/.rvm/rubies/ruby-1.9.3-head/bin/ruby --with-mysql-config --without-mysql-config Gem files will remain installed in /Users/albert/.rvm/gems/ruby-1.9.3-head@kyrgyz-tours/gems/mysql2-0.3.13 for inspection. Results logged to /Users/albert/.rvm/gems/ruby-1.9.3-head@kyrgyz-tours/gems/mysql2-0.3.13/ext/mysql2/gem_make.out An error occurred while installing mysql2 (0.3.13), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.13'` succeeds before bundling. Thank you all! Gem mysql2 installed :)
