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Why is My mysql2 Gem Installation Failing?

Barbara Streisand
Release: 2024-10-31 11:36:01
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Why is My mysql2 Gem Installation Failing?

Ruby Gem mysql2 Installation Failure

Installing the mysql2 gem can sometimes encounter unexpected errors. Here's a comprehensive guide to resolve this issue and successfully install mysql2:

Ubuntu

To install mysql2 on Ubuntu, follow these steps:

  1. Install the mysql development headers using sudo apt-get install libmysqlclient-dev.
  2. Specify the MySQL directory during gem installation using the --with-mysql-dir option: sudo gem install mysql2 -- --with-mysql-dir=/etc/mysql/.

Other Platforms

If you're encountering installation errors on platforms other than Ubuntu, try the following:

  1. Ensure that the necessary MySQL development files are available. On macOS, you may need to install the MySQL Command-Line Tools package.
  2. Check the mkmf.log file located in the gem installation directory for detailed error information. This may indicate missing libraries or headers.
  3. If the error persists, try specifying the MySQL directory using the --with-mysql-dir option when installing the gem. Provide the path to the MySQL installation directory.
  4. Consider installing additional dependencies such as gcc or make if they are not present on your system.

Example

Here's an example of a successful mysql2 installation on Ubuntu:

sudo apt-get install libmysqlclient-dev
sudo gem install mysql2 -- --with-mysql-dir=/etc/mysql/
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This should resolve the installation errors and allow you to successfully install the mysql2 gem.

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