# Invalid XPixMap"

**URL:** <https://gromacs.bioexcel.eu/t/invalid-xpixmap/769>\
**Category:** User discussions\
**Created:** [September 5, 2020, 9:10am UTC](https://gromacs.bioexcel.eu/t/invalid-xpixmap/769 "2020-09-05T09:10:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Azam](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Azam](https://gromacs.bioexcel.eu/u/Azam)\
**Post date:** [September 5, 2020, 9:10am UTC](https://gromacs.bioexcel.eu/t/invalid-xpixmap/769/1 "2020-09-05T09:10:06Z")

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GROMACS version:2020  
GROMACS modification: Yes/No

Hi all,

I hope you could help me out with this question in GROMACS.

I am trying to use the “xpm2ps” command in GROMACS to output a postscript file from an .xpm file. However, I keep on getting an error as such:

"Input error or input inconsistency:

Invalid XPixMap"

I am not too sure how to solve this so I hope someone could help.

Thanks in advance!

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<div class="post-metadata">

**Author:** ![jalemkul](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/jalemkul/32/18_2.png) [@jalemkul](https://gromacs.bioexcel.eu/u/jalemkul)\
**Post date:** [September 6, 2020, 1:10am UTC](https://gromacs.bioexcel.eu/t/invalid-xpixmap/769/2 "2020-09-06T01:10:39Z")

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Please search the forum before posting. This is a known bug in the 2020 version and was fixed in 2020.3. See previous discussion at [Error to generate xpm2ps output](https://gromacs.bioexcel.eu/t/error-to-generate-xpm2ps-output/413/2)