joe hurst

Indeed Sir. That fixed the problem. Thank you very much.

And this one.

Okay . I hope I got it.

Here's a net list.

Making an active filter. Taking out the opamps, just using passive comps, simulates something like I am expecting. Putting in the opamps gives the above error message. Tried 3 different opamps , and models, but it's always the same result. I looked at the netlist and models but don't really see anything (also I don't know what I'm looking for). Can someone give me some advice on this please ?