Error installing mysql2: Failed to build gem native extension

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On Ubuntu/Debian and other distributions using aptitude:

sudo apt-get install libmysql-ruby libmysqlclient-dev

Package libmysql-ruby has been phased out and replaced by ruby-mysql. This is where I found the solution.

If the above command doesn’t work because libmysql-ruby cannot be found, the following should be sufficient:

sudo apt-get install libmysqlclient-dev

On Red Hat/CentOS and other distributions using yum:

sudo yum install mysql-devel

On Mac OS X with Homebrew:

brew install mysql

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