# Pmx ligandHybrid list index out of range error

**URL:** <https://ask.bioexcel.eu/t/pmx-ligandhybrid-list-index-out-of-range-error/4413>\
**Category:** pmx\
**Created:** [July 13, 2023, 7:04pm UTC](https://ask.bioexcel.eu/t/pmx-ligandhybrid-list-index-out-of-range-error/4413 "2023-07-13T19:04:05Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![vgapsys](https://avatars.discourse-cdn.com/v4/letter/v/7993a0/32.png) [@vgapsys](https://ask.bioexcel.eu/u/vgapsys)\
**Post date:** [July 19, 2023, 12:55pm UTC](https://ask.bioexcel.eu/t/pmx-ligandhybrid-list-index-out-of-range-error/4413/6 "2023-07-19T12:55:50Z")

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The itp files need to have the parameters explicitly defined, i.e. bonds, angles and dihedrals need their parameters in the itp files

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_[View the full topic](https://ask.bioexcel.eu/t/pmx-ligandhybrid-list-index-out-of-range-error/4413)._