MySql Connector issue in Standalone-player

I'm using MySql Connector / .NET to implement a login/register system. It's working fantastic in Unity editor, but when I build the player, and try to connect to DB, it throws an exception:



The exception is thrown within the MysqlConnection.Open() method.

All the needed dlls are imported.
Mysql Connector / .NET v.6.8.3 - also tried with older versions. using Win7, Unity 4.5.0
Tried to modify connection string, as a lot of people suggested.
Tried different build options, ie development build, x86_64 etc.

I really don't know, what else I can try, once again, it is working perfectly, without even one warning inside Unity.
I'd really appreciate any kind of idea, solution. Thanks a lot.

 

Hmm... that error is generally caused I believe by applications looking for app.config files. After you build your standalone, what happens if you create an empty app.config file in the base directory of your .exe before you try to run it?

 

Same error message.