# Missing varaible SLTYP from MET\_CRO\_2D

**URL:** <https://forum.cmascenter.org/t/missing-varaible-sltyp-from-met-cro-2d/4927>\
**Category:** MCIP\
**Tags:** cmaq\
**Created:** [May 12, 2024, 7:27pm UTC](https://forum.cmascenter.org/t/missing-varaible-sltyp-from-met-cro-2d/4927 "2024-05-12T19:27:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![LeonCarto](https://avatars.discourse-cdn.com/v4/letter/l/ac8455/32.png) [@LeonCarto](https://forum.cmascenter.org/u/LeonCarto)\
**Post date:** [May 12, 2024, 7:27pm UTC](https://forum.cmascenter.org/t/missing-varaible-sltyp-from-met-cro-2d/4927/1 "2024-05-12T19:27:19Z")

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I am using the MCIP v5.4 to generate data for CCTM but it raises an error **Error interpolating variable SLTYP from MET\_CRO\_2D** when I run with CCTM

 ![Screenshot 2024-05-13 at 02.26.09](https://canada1.discourse-cdn.com/flex027/uploads/cmas/original/2X/2/284017f2b4eeac19e318f10c9e562ebcb7efa8fb.png)  
I have checked the configuration/documentation and there is no information about setting up SLTYP in MCIP.  
Any suggestions on how to fix it? Thanks!

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**Author:** ![LeonCarto](https://avatars.discourse-cdn.com/v4/letter/l/ac8455/32.png) [@LeonCarto](https://forum.cmascenter.org/u/LeonCarto)\
**Post date:** [May 13, 2024, 2:28am UTC](https://forum.cmascenter.org/t/missing-varaible-sltyp-from-met-cro-2d/4927/2 "2024-05-13T02:28:32Z")

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I found the variable SLTYP exists in METCRO2D, so the error is CCTM can not interpolate this value.

 ![Screenshot 2024-05-13 at 09.26.05](https://canada1.discourse-cdn.com/flex027/uploads/cmas/original/2X/e/e9b24bd08199ab46a3103d6febd1cf35d53bd4aa.png)  
Any suggestions on how to fix it? Thanks!  
Or is there any method to explore the error, I tried to read log of CCTM but the information in not in detail

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<div class="post-metadata">

**Author:** ![LeonCarto](https://avatars.discourse-cdn.com/v4/letter/l/ac8455/32.png) [@LeonCarto](https://forum.cmascenter.org/u/LeonCarto)\
**Post date:** [May 13, 2024, 3:07am UTC](https://forum.cmascenter.org/t/missing-varaible-sltyp-from-met-cro-2d/4927/3 "2024-05-13T03:07:05Z")

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I found the solution here [CMAQ5.3.1 CCTM run error “ Error interpolating variable SLTYP” - #3 by CN\_CODER](https://forum.cmascenter.org/t/cmaq5-3-1-cctm-run-error-error-interpolating-variable-sltyp/1453/3)