Originally posted by **smallrain1996** March 11, 2022
When I execute the below command:
```
neper -T -n 100 -dim 2 -o test
neper -M test.tess -format inp -interface cohesive -statelsetco eltnb -o test
```
Result:
```
======================== N e p e r =======================
Info : A software package for polycrystal generation and meshing.
Info : Version 4.4.0
Info : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info : Running on 8 threads.
Info :
Info : Copyright (C) 2003-2022, and GNU GPL'd, by Romain Quey.
Info : No initialization file found (`/home/smallrain/.neperrc').
Info : ---------------------------------------------------------------
Info : MODULE -M loaded with arguments:
Info : [ini file] (none)
Info : [com line] test.tess -format inp -interface cohesive
-statelsetco eltnb -o test
Info : ---------------------------------------------------------------
Info : Reading input data...
Info : - Reading arguments...
Error : Unknown option `-statelsetco'.
Error : Bad arguments!
```
Discussed in https://github.com/rquey/neper/discussions/407