Function deployment into a BI System from Source system

Hello Experts,

I am facing a problem while trying to deploy my function into the destination system. I have followed the process as described in the following link:

Decision Service Management Decision Service Deployment Part II

But somehow, I am facing problems. The error message is as below:

Does anyone have some idea where the problem could lie?

FYI: I am using the DSM and BRFplus in NW7.4 and trying to deploy the function into NW 7.3 system.

Thanks in advance.