Rails on OSX 10.11 El Capitan: Library not loaded: libmysqlclient.18.dylib

Question

Since I upgraded OSX to 10.11, I can\'t use MySQL with my Rails app anymore:

$ rails s
/Users/josh/.rvm/gems/ruby-2.2.3@a4aa2/gems/activesupport-4.2.1/lib/ac         


        

Answer 1

The previous answer (pre El Capitan), was to create a symbolic link from mysql's lib directory for the library file into /usr/lib, like this:

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

However this now produces 'operation not permitted' due to OS X's integrity controls. This can be worked around by disabling this. However a much easier solution (and one I can verify has worked) is to just symlink it into /usr/local/lib instead:

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

Good ol' Apple.

Answer 2

i had the same problem just open terminal hit:

sudo nano ~/.bash_profile

paste the following lines:

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

and thats it.