How to Fix the \'Library not loaded: libmysqlclient.18.dylib\' Error in Rails on macOS?

Resolving "Library not loaded: libmysqlclient.18.dylib" Error for Rails and MySQL on macOS

When attempting to switch from SQLite to MySQL in a Ruby on Rails application, developers may encounter the "Library not loaded: libmysqlclient.18.dylib" error. This occurs when Rails cannot find the necessary MySQL library.

Solution

1. Update Library Paths

Add the MySQL library path to your ~/.bash_profile or ~/.profile file:

MYSQL=/usr/local/mysql/bin
export PATH=$PATH:$MYSQL
export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH

2. Create a Symbolic Link

If the previous step fails, create a symbolic link:

sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

Important Notes

Note that the solution provided is specific to macOS Lion. If you encounter this error on a different OS version, consult additional sources or reach out to the Ruby community for assistance.

The above is the detailed content of How to Fix the \'Library not loaded: libmysqlclient.18.dylib\' Error in Rails on macOS?. For more information, please follow other related articles on the PHP Chinese website!