Hi,

This error occurs most likely because your spectre model file contains many sections. You need to tell to spectre which section it has to include.
I guess your netlist contains :
include "<YOUR_MODEL_PATH>/spectreModelFile.scs"
but it should be like
include "<YOUR_MODEL_PATH>/spectreModelFile.scs" section=TYP
if you want to simulate the TYP corner (or typical, SLOW, FAST ....)

If your using the ADE GUI to make you netlist, then go to:
ADE -> Setup -> Model Libraries.
Click or select the model you want to include and fill the 'section (opt)' field to choose which section you want to include.

Cheers  ;)
Riad.