**When I run the codes below in Elmer 9.0 version on Windows, I get errors.**

---------------

Solver 2

Exec Solver = Always

Equation = MgDyn2D

Variable = A

Procedure = "MagnetoDynamics2D" "MagnetoDynamics2D"

Nonlinear System Convergence Tolerance = 1.0e-4

Nonlinear System Max Iterations = 30

Linear System Solver = Direct

Linear System Iterative Method = MUMPS

End

--------------------

**The error output is as follows. How can I fix the problem? Please help.**

ELMER SOLVER (v 9.0) STARTED AT: 2024/07/01 13:12:42

ParCommInit: Initialize #PEs: 1

MAIN:

MAIN: =============================================================

MAIN: ElmerSolver finite element software, Welcome!

MAIN: This program is free software licensed under (L)GPL

MAIN: Copyright 1st April 1995 - , CSC - IT Center for Science Ltd.

MAIN: Webpage http://www.csc.fi/elmer, Email elmeradm@csc.fi

MAIN: Version: 9.0 (Rev: Release, Compiled: 2024-02-07)

MAIN: Running one task without MPI parallelization.

MAIN: Running with just one thread per task.

MAIN: Lua interpreter linked in.

MAIN: =============================================================

MAIN:

MAIN:

MAIN: -------------------------------------

MAIN: Reading Model: model.sif

LoadInputFile: Scanning input file: model.sif

LoadInputFile: Scanning only size info

LoadInputFile: First time visiting

LoadInputFile: Reading base load of sif file

OpenIncludeFile: Trying to include file: el_steel_M800_65A

LoadInputFile: Loading input file: model.sif

LoadInputFile: Reading base load of sif file

OpenIncludeFile: Trying to include file: el_steel_M800_65A

CheckKeyword: Unlisted keyword: [a] in section: [boundary condition 1]

CheckKeyword: Unlisted keyword: [a] in section: [boundary condition 6]

LoadInputFile: Number of BCs: 8

LoadInputFile: Number of Body Forces: 4

LoadInputFile: Number of Initial Conditions: 0

LoadInputFile: Number of Materials: 2

LoadInputFile: Number of Equations: 1

LoadInputFile: Number of Solvers: 4

LoadInputFile: Number of Bodies: 18

ListTagKeywords: Setting weight for keywords!

ListTagKeywords: No parameters width suffix: normalize by area

ListTagKeywords: Setting weight for keywords!

ListTagKeywords: No parameters width suffix: normalize by volume

MAIN:

MAIN: -------------------------------------

MAIN: Steady state iteration: 1

MAIN: -------------------------------------

MAIN:

ComputeChange: NS (ITER=1) (NRM,RELC): ( 63127.996 2.0000000 ) :: mgdyn2d

ComputeChange: NS (ITER=2) (NRM,RELC): ( 116419.08 0.59361687 ) :: mgdyn2d

ComputeChange: NS (ITER=3) (NRM,RELC): ( 67587.312 0.53076169 ) :: mgdyn2d

ComputeChange: NS (ITER=4) (NRM,RELC): ( 57692.200 0.15796856 ) :: mgdyn2d

ComputeChange: NS (ITER=5) (NRM,RELC): ( 50587.952 0.13121975 ) :: mgdyn2d

ComputeChange: NS (ITER=6) (NRM,RELC): ( 44850.641 0.12023042 ) :: mgdyn2d

ComputeChange: NS (ITER=7) (NRM,RELC): ( 40661.899 0.97967913E-01 ) :: mgdyn2d

ComputeChange: NS (ITER=8) (NRM,RELC): ( 38224.042 0.61807125E-01 ) :: mgdyn2d

ComputeChange: NS (ITER=9) (NRM,RELC): ( 37218.513 0.26656804E-01 ) :: mgdyn2d

ComputeChange: NS (ITER=10) (NRM,RELC): ( 37006.181 0.57213381E-02 ) :: mgdyn2d

ComputeChange: NS (ITER=11) (NRM,RELC): ( 37003.635 0.68808913E-04 ) :: mgdyn2d

ComputeChange: SS (ITER=1) (NRM,RELC): ( 0.25289907E-01 2.0000000 ) :: mgdyn2d

WARNING:: GetPermittivity: Permittivity not defined in material, defaulting to that of vacuum

ERROR:: SolveLinearSystem: Give "Linear System Solver", e.g. "linear" or "direct"