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Ruby ActiveRecord Basics Migrations and Relationships Migrations

AIA Developers
AIA Developers
9,806 Points
Posted by AIA Developers
AIA Developers
9,806 Points

Mysql Error

Hi There I am getting following error whenI am trying to create new project using mysql

Mysql is install correctly and I can get to mysql by typing "mysql"

Please help

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

/Users/khurram.shahzad/.rbenv/versions/2.0.0-p353/bin/ruby extconf.rb

checking for ruby/thread.h... yes checking for rb_thread_call_without_gvl() in ruby/thread.h... yes 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

Using mysql_config at /Applications/MAMP/Library/bin/mysql_config

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 --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=/Users/khurram.shahzad/.rbenv/versions/2.0.0-p353/bin/ruby --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/ --with-mysql-config --without-mysql-config

Gem files will remain installed in /Users/khurram.shahzad/.rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/mysql2-0.3.18 for inspection. Results logged to /Users/khurram.shahzad/.rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/mysql2-0.3.18/ext/mysql2/gem_make.out An error occurred while installing mysql2 (0.3.18), and Bundler cannot continue. Make sure that gem install mysql2 -v '0.3.18' succeeds before bundling.

3 Answers

Sage Elliott
Sage Elliott
30,003 Points
Sage Elliott
Sage Elliott
30,003 Points

I had the same problem before, I added "export PATH=${PATH}:/usr/local/mysql/bin" to my .bash_profile as this stack overflow suggested. You can also run that first in your terminal to make sure it fixes your error before editing your bash profile!

http://stackoverflow.com/questions/10577374/mysql-command-not-found

Uriel Hernández
Uriel Hernández
3,681 Points
Uriel Hernández
Uriel Hernández
3,681 Points

Here's a blog post explaining how to configure mySQL with Rails: http://paul-wong-jr.blogspot.mx/2011/06/getting-mysql2-gem-to-work-with-ruby-on.html

Also as you said you already have installed mySQL in your OS, you can try installing the gem while passing the path in where you have mysql installed:

gem install mysql2  --with-mysql-dir=c:/mysql-connector-c-x-y-z

The gem readme also recommends you to install the DevKit compiler with your Ruby installation, you can download it here: http://rubyinstaller.org/downloads/

Hope this helps!