Error when doing Monte Carlo Simulation

Hi all,

I am doing Monte Carlo simulation with IC617 and TSMC 180nm PDK. I am using ADE explorer to do the simulation. But the simulation failed with the following error:

ERROR (EXPOLRER-5052): Monte Carlo run stopped because no statistical data generated for the test.

I ran different corners and it turned out that those simulations are running smoothly. But I am not sure about how to set model sections in MC simulation.

Here is how I set the MC model sections:

Basically I use typical mosfet, bipolar transistor and resistor to build a bandgap reference circuit. And I do set the the models to be those with mismatch characteristics. I think the model sections in the screenshot are enough to do the simulation.

Here is how I set the MC simulation:

Here is how I set the output signal:

Could someone please help me with it or give me some hint? 

Thanks in advance.

Best,

Orangehalo