How to Fix 'Error Installing mysql2: Failed to Build Gem Native Extension'?

How to Resolve "Error Installing mysql2: Failed to Build Gem Native Extension"?

Encountering the "Error installing mysql2: ERROR: Failed to build gem native extension" while installing the mysql2 gem for Rails can be frustrating. Luckily, there are OS-specific solutions to fix this problem.

Ubuntu/Debian:

sudo apt-get install libmysql-ruby libmysqlclient-dev

Red Hat/CentOS:

sudo yum install mysql-devel

Mac OS X with Homebrew:

brew install mysql

Once these commands are executed, the native extension for the mysql2 gem should build successfully, allowing you to proceed with your Rails project.

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