# FFParam GUI

**URL:** <https://gromacs.bioexcel.eu/t/ffparam-gui/1736>\
**Category:** User discussions\
**Created:** [March 11, 2021, 5:56pm UTC](https://gromacs.bioexcel.eu/t/ffparam-gui/1736 "2021-03-11T17:56:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![konstantina](https://avatars.discourse-cdn.com/v4/letter/k/278dde/32.png) [@konstantina](https://gromacs.bioexcel.eu/u/konstantina)\
**Post date:** [March 11, 2021, 5:56pm UTC](https://gromacs.bioexcel.eu/t/ffparam-gui/1736/1 "2021-03-11T17:56:17Z")

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GROMACS version:  
GROMACS modification: Yes/No  
Here post your question  
I have a problem regarding psi4 and ffparam. I followed the instructions that the ffparam tutorial suggests, however I cannot create psi4 files or execute psi4 runs, because of the warning Chem module not found or RDKit not found. I have made sure to follow the instructions, but I cannot complete my work. Is there any other useful tutorial or more updated or even some other way to optimize geometry on str files produced from CGenFF with high penalties?

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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:** [February 9, 2023, 7:25pm UTC](https://gromacs.bioexcel.eu/t/ffparam-gui/1736/2 "2023-02-09T19:25:25Z")

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Hello Konstantina I am exhibiting this same issue because of my Mac Version, please let me know if you resolved this issue, thanks Joel :)

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**Author:** ![jalemkul](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/jalemkul/32/18_2.png) [@jalemkul](https://gromacs.bioexcel.eu/u/jalemkul)\
**Post date:** [February 9, 2023, 9:10pm UTC](https://gromacs.bioexcel.eu/t/ffparam-gui/1736/3 "2023-02-09T21:10:08Z")

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FFParam is not a GROMACS program. If you need help with it, [Contact Us](http://ffparam.umaryland.edu/contact.php)

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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:** [February 9, 2023, 9:15pm UTC](https://gromacs.bioexcel.eu/t/ffparam-gui/1736/4 "2023-02-09T21:15:12Z")

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Hi Justin thank you for this link:)