Error in simulation: Not enough nodes found

[LV_Enthu]

Hello i am trying to simulate a simple active filter ckt using MAX9618. However, i keep getting error as Not enough nodes in my schematic I have attached the schematic for reference. 

Can anyone please help me understand why am i getting this error?

If I remove U2B component in the schematic, i observed that I don't get the above mentioned error?

I am a complete newbie to multisim...

[Tien_P · Accepted solution]

Hi,

The way you created the op-amp section B is likely the problem. The model has 5 nodes while your section B symbol only has 3 pins.  Refer to the following tutorial, to learn how to create multi-section part with different symbols:

http://www.ni.com/tutorial/14438/en/