# Timestep errors

**URL:** <https://forum.mimiframework.org/t/timestep-errors/317>\
**Category:** Uncategorized\
**Created:** [October 24, 2024, 12:23am UTC](https://forum.mimiframework.org/t/timestep-errors/317 "2024-10-24T00:23:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![emilywen2001](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.mimiframework.org/emilywen2001/32/116_2.png) [@emilywen2001](https://forum.mimiframework.org/u/emilywen2001)\
**Post date:** [October 24, 2024, 12:23am UTC](https://forum.mimiframework.org/t/timestep-errors/317/1 "2024-10-24T00:23:50Z")

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Hi, there

I encountered this problem when running the model, but I did not modify any parameters related to time, how can I solve it?

Thanks!

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/mimiframework/original/1X/91b780da8a2d54083b1a91b55b778dbfe718189e.jpeg)

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**Author:** ![lrennels](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.mimiframework.org/lrennels/32/6_2.png) [@lrennels](https://forum.mimiframework.org/u/lrennels)\
**Post date:** [October 24, 2024, 12:49am UTC](https://forum.mimiframework.org/t/timestep-errors/317/2 "2024-10-24T00:49:10Z")

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Hi @emilywen2001,

From the attached error message it looks like an error with indexing, perhaps you are indexing into a parameter or variable’s time dimension using an Integer instead of `t`? If possible please paste the complete error message, since at some point further down the Stacktrace should point to a line of code in one of your machine’s files, which will help us better understand where the error is coming from. Take a look and see if you can see (in light grey) a line of your code?

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<div class="post-metadata">

**Author:** ![emilywen2001](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.mimiframework.org/emilywen2001/32/116_2.png) [@emilywen2001](https://forum.mimiframework.org/u/emilywen2001)\
**Post date:** [October 24, 2024, 2:38am UTC](https://forum.mimiframework.org/t/timestep-errors/317/3 "2024-10-24T02:38:39Z")

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Thanks! I found a dimension declaration error and figured it out

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**Author:** ![lrennels](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.mimiframework.org/lrennels/32/6_2.png) [@lrennels](https://forum.mimiframework.org/u/lrennels)\
**Post date:** [October 24, 2024, 3:28am UTC](https://forum.mimiframework.org/t/timestep-errors/317/4 "2024-10-24T03:28:07Z")

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Oh great, glad to be of help!