# Missing netcdf.mod file while building CRTM

**URL:** <https://forums.jcsda.org/t/missing-netcdf-mod-file-while-building-crtm/613>\
**Category:** CRTM\
**Created:** [July 24, 2024, 3:21pm UTC](https://forums.jcsda.org/t/missing-netcdf-mod-file-while-building-crtm/613 "2024-07-24T15:21:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Zaid133](https://avatars.discourse-cdn.com/v4/letter/z/ccd318/32.png) [@Zaid133](https://forums.jcsda.org/u/Zaid133)\
**Post date:** [July 24, 2024, 3:21pm UTC](https://forums.jcsda.org/t/missing-netcdf-mod-file-while-building-crtm/613/1 "2024-07-24T15:21:15Z")

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I am trying to set up CRTM by following the CRTM user guide. However, I am facing a fatal error at the building stage which reports that netcdf.mod file is missing. I have tried to explicitly place netcdf.mod file in relevant directories but it gets removed everytime I try to build the model. Any help regarding this issue would be highly appreciiated.

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**Author:** ![BenjaminTJohnson](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.jcsda.org/benjamintjohnson/32/19_2.png) [@BenjaminTJohnson](https://forums.jcsda.org/u/BenjaminTJohnson)\
**Post date:** [July 24, 2024, 3:37pm UTC](https://forums.jcsda.org/t/missing-netcdf-mod-file-while-building-crtm/613/2 "2024-07-24T15:37:29Z")

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Hi,

Which version of CRTM are you using, and where did you obtain it from?

-Ben