[Toribio]

Your plugin folder must have the file mysql.def.

Check if it exists, if not, create it with this content:

Code:

LIBRARY "mysql"
EXPORTS
	Supports
	Load
	Unload
	AmxLoad
	AmxUnload

And then open your project file, and go to Project->mysql Properties (or Alt+F7), then:

Configuration properties
-Liker
--Module Definition File

Set it to mysql.def.

You're done.

PS: If you're not coding this plugin, you have to contact the plugin's owner, because this is a internal problem.