Dear All

when i am trying to do a Model (Office Building) For Energy Analysis , and to generate  Report by clicking on Perform Compliance analysis , i get the Following Error Message :

"ERROR     Table Look-up failed:A901-0_Envelope(1,4): Look-up and default C-FFACTOR for slabs"

& the Report didn't generate !!!!!!

I don't know where i should go to see in the Input Value & to check the C-Factor for Slab (i tried but i didn't find) Can u help me please to resolve this Problem , i appreciated any Help.....thanks by Advance

Best regards,

Eng. Riad el Abed