Number of fins in the transistor must be less than height

[Mario1159]

I'm getting the error: "number of fins in the transistor must be less than height" in the following netlist:

.subckt erroramp Vout Vdd GND Vp Vn Ibias
M2 net1 Vn net3 GND nmos_hvt w=4830e-9 l=500e-9 nf=2 m=4
M3 net2 Vp net3 GND nmos_hvt w=4830e-9 l=500e-9 nf=2 m=4
M4 net1 net1 Vdd Vdd pmos_hvt w=2940e-9 l=500e-9 nf=2 m=4
M5 net2 net1 Vdd Vdd pmos_hvt w=2940e-9 l=500e-9 nf=2 m=4
M6 Vout net2 Vdd Vdd pmos_hvt w=2940e-9 l=500e-9 nf=2 m=16
M7 net3 Ibias GND GND nmos_hvt w=630e-9 l=500e-9 nf=2 m=4
M9 Vout Ibias GND GND nmos_hvt w=630e-9 l=500e-9 nf=2 m=64
M1 Ibias Ibias GND GND nmos_hvt w=630e-9 l=500e-9 nf=2 m=4
*MCAP net2 Vout sky130_fd_pr__cap_mim_m3_1 l=20e-6 w=25e-6 m=1
C0 net2 Vout 500f
.ends erroramp

Initially I had nf=1 but since nf had to be even I increased it to 2, but now I cannot get past this error because I honestly don't understand what it means.

[giuseppe-chiari]

I am having the same issue, did you solve it?

[Mario1159]

It's been a while since the last time that I used align, but I think it was that some transistors were too wide.
I had an old note about the restrictions I have seen, so first, try a design with every transistor a multiple of the width pitch (210), a pair number of fins, and a width below the width pitch * 12 (2520).

[giuseppe-chiari]

Thank you. That has solved the problem.
Did you incur any other issues? For example, I am having an issue with transistor dimensions as described in issue #12.