Hi Kamran, My guess is that the model for M1 is actually a subckt model (it's not a direct transistor instance), and so there's no transistor called M1. It's probably called M1.Mnn (or something like that) and so you'd need to save M1.Mnn:gm (or whatever). I suggest you just do a DC operating point simulation (don't do a DC sweep) initially, and then look in the results browser to see if there's hierarchy under the device M1 (or look in the model files to figure it out yourself). Most likely, you're just asking to save the wrong thing... Regards, Andrew.
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