How to open BW 7.3 Standard Content dashboards from Dashboard design 4.0 SP7

Hi,

we have installed BI Standard content dashboards in BW 7.3. Now I need to open the dashboards using Dashboard Design 4.0 SP7. 

I tried to open the using the Sap menu SAP > Open but it gives the following error

Can you please suggest me, what are the prerequisites that we need to have and the way to access the dashboards which are activated in BW 7.3.

Regards,

Mallareddy D.