# Pdb file not consisitent with force field

**URL:** <https://gromacs.bioexcel.eu/t/pdb-file-not-consisitent-with-force-field/10546>\
**Category:** User discussions\
**Created:** [November 14, 2024, 1:02am UTC](https://gromacs.bioexcel.eu/t/pdb-file-not-consisitent-with-force-field/10546 "2024-11-14T01:02:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ummul](https://avatars.discourse-cdn.com/v4/letter/u/e9c0ed/32.png) [@ummul](https://gromacs.bioexcel.eu/u/ummul)\
**Post date:** [November 14, 2024, 1:02am UTC](https://gromacs.bioexcel.eu/t/pdb-file-not-consisitent-with-force-field/10546/1 "2024-11-14T01:02:19Z")

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GROMACS version:2022  
GROMACS modification: Yes/No  
Here post your question  
Atom C7 in residue DT 4 was not found in rtp entry DT with 32 atoms  
while sorting atoms.

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**Author:** ![MagnusL](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/magnusl/32/2380_2.png) [@MagnusL](https://gromacs.bioexcel.eu/u/MagnusL)\
**Post date:** [November 18, 2024, 7:43am UTC](https://gromacs.bioexcel.eu/t/pdb-file-not-consisitent-with-force-field/10546/2 "2024-11-18T07:43:44Z")

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Please have a look at [Common errors when using GROMACS - GROMACS 2024.4 documentation](https://manual.gromacs.org/documentation/current/user-guide/run-time-errors.html#atom-x-in-residue-yyy-not-found-in-rtp-entry). You probably just need to rename the atoms in your pdb file.