# Install gromacs V.5

**URL:** <https://gromacs.bioexcel.eu/t/install-gromacs-v-5/4444>\
**Category:** User discussions\
**Tags:** analysis-tools\
**Created:** [July 9, 2022, 8:36am UTC](https://gromacs.bioexcel.eu/t/install-gromacs-v-5/4444 "2022-07-09T08:36:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Maryam](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@Maryam](https://gromacs.bioexcel.eu/u/Maryam)\
**Post date:** [July 9, 2022, 8:36am UTC](https://gromacs.bioexcel.eu/t/install-gromacs-v-5/4444/1 "2022-07-09T08:36:13Z")

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GROMACS version:2021  
GROMACS modification: Yes/No  
Here post your question  
Dear all,  
i have MD file which generated by gromacs 2021.5 , I want to use g\_mmpbsa. when i run g\_mmpbsa commands, but I am getting this error:  
Fatal error:  
reading tpx file (md300-2.tpr) version 119 with version 103 program

I want install gromacs V.5 to creat .tpr file with gromacs V.5 and solve this problem, but i cannot install old gromacs version.

i request kind suggestion for this problem