# New to Gromacs and C++

**URL:** <https://gromacs.bioexcel.eu/t/new-to-gromacs-and-c/9907>\
**Category:** User discussions\
**Created:** [August 17, 2024, 7:46am UTC](https://gromacs.bioexcel.eu/t/new-to-gromacs-and-c/9907 "2024-08-17T07:46:45Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![al42and](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/al42and/32/1393_2.png) [@al42and](https://gromacs.bioexcel.eu/u/al42and)\
**Post date:** [August 31, 2024, 1:30pm UTC](https://gromacs.bioexcel.eu/t/new-to-gromacs-and-c/9907/12 "2024-08-31T13:30:50Z")

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Hi!

> [@Nick\_4000\_123](#):
>
> /mnt/c/Users/k1nic/gromacs-2018/src/gromacs/mdlib/minimize.cpp:2507:51: error: expected primary-expression before ‘\>’ token  
> 2507 | s\_try-\>epot = std::numeric\_limits::infinity();

Please see this post (it’s about GROMACS 2016, but the same applies for GROMACS 2018): [Gromacs(2016)/Spack Compilation Fails- error: 'numeric\_limits' is not a member of 'std' - #2 by al42and](https://gromacs.bioexcel.eu/t/gromacs-2016-spack-compilation-fails-error-numeric-limits-is-not-a-member-of-std/6069/2)

> [@Nick\_4000\_123](#):
>
> – Looking for include file io.h - not found

This is normal.

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