Issue in Crystal Report

I am extremely beginner on Crystal Report.
I have some questions regarding Crystal Report and Microsoft Dynamics GP2013R2 (Dex 12.0)
I have Microsoft Dynamics GP sample code for how to run Crystal Report from GP. Unfortunately, I couldn’t able to run this code successfully.
Below is the sample code:

local reference Report,crxApplication;
crxApplication = COM_CreateObject(“CrystalRuntime.Application.11″);

I am getting an EXCEPTION_CLASS_OBJECT_EXCEPTION error on –>crxApplication
I am using Crystal Report version 13.0.

Which version of Crystal Report needed for Dexterity 12.0? what is the solution for solving the issue.?

Thanks in advance..
Regards,
Sathiya