Hello, I'm new with Pspice (only 3 days) and I've to make a differential amplifier with CMOS (N and P) to run. I've made it but when I run it, it shows me the message
"M_Q6 N01848 N02912 N01565 CMOSP
+ L=10u
----$
ERROR -- unknown parameter
+ W=12u"
twice. I have to finish the project in 5 hours! and I don't know what to do.
Could anyone help me please!!!!!!????
This is all the message I get in case you need it.
"
** Creating circuit file "diaforikos enisxutis-SCHEMATIC1-DIAFORIKOS2.sim.cir"
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries:
* Local Libraries :
* From [PSPICE NETLIST] section of C:\Program Files\Orcad\PSpice\PSpice.ini file:
.lib "D:\METAPTYXIAKO\A' EXAMINO\ANALOG MICRO & VATHM\DIAFORIKOS ENISXUTHS\CMOS.lib"
.lib "nom.lib"

*Analysis directives:
.DC V_VDD LIST 5V
.PROBE V(*) I(*) W(*) D(*) NOISE(*)
.INC ".\diaforikos enisxutis-SCHEMATIC1.net"



**** INCLUDING "diaforikos enisxutis-SCHEMATIC1.net" ****
* source DIAFORIKOS ENISXUTIS
V_V3 N02344 GND DC 0Vdc AC 1Vac
V_V4 N02422 GND DC 0Vdc AC -1Vac
M_Q4 N03011 N03011 N02230 N02230 CMOSN
+ L=2u
+ W=25u
M_Q6 N01848 N02912 N01565 CMOSP
+ L=10u
----$
ERROR -- unknown parameter
+ W=12u
V_VDD N01565 GND 5V
R_R1 N03011 N02912 {250k*0.5+.001}
V_VEE N02230 GND -5V
M_Q1 N01848 N02344 N02024 N02024 CMOSN
+ L=1u
+ W=13u
M_Q2 N01947 N02422 N02024 N02024 CMOSN
+ L=1u
+ W=13u
M_Q7 N01947 N02912 N01565 CMOSP
+ L=10u
----$
ERROR -- unknown parameter
+ W=12u
M_Q8 N02912 N02912 N01565 N01565 CMOSN
+ L=2u
+ W=25u
M_Q3 N02024 N03011 N02230 N02230 CMOSN
+ L=2u
+ W=50u

**** RESUMING "diaforikos enisxutis-SCHEMATIC1-DIAFORIKOS2.sim.cir" ****
.END"

Thank you.(I try to attach the schematic but I was not permitted)

 

You are missing the bulk connections for the mosfets where the errors occur. Declaration of a mosfet in spice is:

MNAME D G S B MODEL [PARAMS]

Anything inside [] is optional. Have a look at your netlist, for the mosfet that do not generate an error you have 4 nodes following the M_XX while the one that produces an error you have only 3 nodes.