# Hellow how to solve this issue?

**URL:** <https://gromacs.bioexcel.eu/t/hellow-how-to-solve-this-issue/10113>\
**Category:** User discussions\
**Created:** [September 6, 2024, 6:13pm UTC](https://gromacs.bioexcel.eu/t/hellow-how-to-solve-this-issue/10113 "2024-09-06T18:13:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Fayaz](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@Fayaz](https://gromacs.bioexcel.eu/u/Fayaz)\
**Post date:** [September 6, 2024, 6:13pm UTC](https://gromacs.bioexcel.eu/t/hellow-how-to-solve-this-issue/10113/1 "2024-09-06T18:13:40Z")

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ERROR 1 [file glycolipid\_posre.itp, line 83]:  
Atom index (79) in position\_restraints out of bounds (1-78).  
This probably means that you have inserted topology section  
“position\_restraints”  
in a part belonging to a different molecule than you intended to.  
In that case move the “position\_restraints” section to the right molecule.

There were 3 notes  
GROMACS version:  
GROMACS modification: Yes/No  
Here post your question

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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:** [September 9, 2024, 5:50am UTC](https://gromacs.bioexcel.eu/t/hellow-how-to-solve-this-issue/10113/2 "2024-09-09T05:50:36Z")

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There is a similar topic here. Try following the advice there to see if it helps [Atom index out of bound](https://gromacs.bioexcel.eu/t/atom-index-out-of-bound/9946). It’s important that restraints are included in the correct place.