Saving of communication structure Dictionary failed

Dear All,

I am trying to activate Business Content for Vistex Module in SAP BI 7.0.

I have taking the Cube and installing using before flow.

The installation job finishes successfully.

But the communication structure remains inactive and when i try to activate manually it shows the error message as "Saving of communicatioin structure /B299/CSLIS_RM_IPCRKON in Dictionary failed".

Message no. RSAR211.

The same is the case with all the Vistex Infosurces.

Having tried searching for SAP Notes but no use.

Please let me know how to solve this issue.

Cheers,

Neel.