Questionable use of curly braces in ".model sir870adp vdmos(rg=3 vto=2.9 rd=3.2m rs=1.5m rb={m} kp=100 mtriode=1.85 cgdmax=1.4n cgdmin=70p cgs=2.9n cjo=3.6n m=.4 a=.7 vj=.7 lambda=20m is=3p ksubthres=.08 mfg=siliconix vds=100 ron=5.5m qg=53.5n)"
    Error: undefined symbol in: "[m]"
Circuit: * C:\Users\Szeli Zoltán\Documents\LTSpice\Teljesítményelektronika\Boost Converter\Simple Boost.asc

Direct Newton iteration for .op point succeeded.
Heightened Def Con from 0.00526514 to 0.00526514

Date: Tue Feb 21 09:17:54 2017
Total elapsed time: 31.378 seconds.

tnom = 27
temp = 27
method = modified trap
totiter = 2734673
traniter = 2734664
tranpoints = 856221
accept = 759927
rejected = 96295
matrix size = 11
fillins = 1
solver = Alternate
Matrix Compiler1: 626 bytes object code size  0.3/0.2/[0.2]
Matrix Compiler2: off  [0.2]/0.4/0.2