At the time of building this gem, the necessary DLL files where available
in the following download:
And put lib\libmysql.dll file in your Ruby bin directory, for example
Incorrect MySQL client library version! This gem was compiled for 5.5.28 but the client library is 5.6.22/ Mac OS X/10.9
wish help you to fix your issue All the problems were related to mysql connector. I needed to update it. I use NetBeans IDE. I just replaced an old mysql driver with the new one. I restarted my MySQL server. It worked. Maybe someone will find my answer helpful.
Incorrect MySQL client library version! This gem was compiled for 5.5.37 but the client library is 5.6.25