# Error in user input: Invalid command-line INQUIRY

**URL:** <https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969>\
**Category:** User discussions\
**Created:** [October 16, 2020, 10:56am UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969 "2020-10-16T10:56:06Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![mjsubach](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/mjsubach/32/387_2.png) [@mjsubach](https://gromacs.bioexcel.eu/u/mjsubach)\
**Post date:** [October 16, 2020, 10:56am UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/1 "2020-10-16T10:56:06Z")

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GROMACS version: 2020.3  
GROMACS modification: Yes/No  
Here post your question:

Hello during the Protein-Ligand nvt equilibration step I had input:

gmx mdrun -v -deffnm nvt -nt 8

to be able to view time completion and am continuously receiving the below error:

Error in user input:  
Invalid command-line options  
In command-line option -v  
Invalid value: ‘deffnm’; supported values are: 1, 0, yes, no, true, false  
In command-line option -v  
Invalid value: ‘nvt’; supported values are: 1, 0, yes, no, true, false

Is there a way to correct this since I have not had this problem previously?

Thanks:)

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**Author:** ![cblau](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/cblau/32/5_2.png) [@cblau](https://gromacs.bioexcel.eu/u/cblau)\
**Post date:** [October 16, 2020, 11:04am UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/2 "2020-10-16T11:04:40Z")

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My first guess is that this might be some copy-paste issue where a space or - character is interpreted in a non-standard way. Can you try typing the same command? Alternatively, as indicated in the error message, using `-v yes` should work.

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**Author:** ![mjsubach](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/mjsubach/32/387_2.png) [@mjsubach](https://gromacs.bioexcel.eu/u/mjsubach)\
**Post date:** [October 16, 2020, 11:09am UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/3 "2020-10-16T11:09:49Z")

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Hello cblau and thank you for your kind update and yes i typed this same command in as well with the same resulting errors, other suggestions?

Much Thanks:)  
Joel

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**Author:** ![cblau](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/cblau/32/5_2.png) [@cblau](https://gromacs.bioexcel.eu/u/cblau)\
**Post date:** [October 16, 2020, 1:29pm UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/4 "2020-10-16T13:29:53Z")

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Yes, trying `-v yes` or trying `--v`. What system are you using?

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**Author:** ![mjsubach](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/mjsubach/32/387_2.png) [@mjsubach](https://gromacs.bioexcel.eu/u/mjsubach)\
**Post date:** [October 16, 2020, 2:49pm UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/5 "2020-10-16T14:49:13Z")

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Hell clbau and thank you again for your kind update and I am using gromacs 2020.3 on my macOS Catalina Version 10.15.6

I tried both of your suggestion via paste and input and both output the same error results .

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**Author:** ![mjsubach](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/mjsubach/32/387_2.png) [@mjsubach](https://gromacs.bioexcel.eu/u/mjsubach)\
**Post date:** [October 17, 2020, 8:17am UTC](https://gromacs.bioexcel.eu/t/error-in-user-input-invalid-command-line-inquiry/969/6 "2020-10-17T08:17:50Z")

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hi…and i just input verbose and the number of threads for npt (gmx mdrun -v -deffnm npt -nt 8)  
and the finish date and time is this time exhibited, so maybe a glitch if possible last time.

Thanks again:)