# Error when coupling moordyn & matlab

**URL:** <https://forums.nlr.gov/t/error-when-coupling-moordyn-matlab/4626>\
**Category:** Uncategorized\
**Created:** [March 12, 2023, 8:31am UTC](https://forums.nlr.gov/t/error-when-coupling-moordyn-matlab/4626 "2023-03-12T08:31:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Riad.Elhamoud](https://dub1.discourse-cdn.com/nrel/user_avatar/forums.nlr.gov/riad.elhamoud/32/5481_2.png) [@Riad.Elhamoud](https://forums.nlr.gov/u/Riad.Elhamoud)\
**Post date:** [March 12, 2023, 8:31am UTC](https://forums.nlr.gov/t/error-when-coupling-moordyn-matlab/4626/1 "2023-03-12T08:31:20Z")

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Dear @Matt.Hall

I have been trying to couple MoorDyn and MATLAB. However, i am getting the following error. Note that i am usin the text file of the OC3 Hywind.

 ![Capture_2](https://europe1.discourse-cdn.com/nrel/original/2X/1/1ac1d9883f8fcb5c530a3b127c8e573f34d4a30f.png)

Could you help please ?

Best Regards,

Riad

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<div class="post-metadata">

**Author:** ![Riad.Elhamoud](https://dub1.discourse-cdn.com/nrel/user_avatar/forums.nlr.gov/riad.elhamoud/32/5481_2.png) [@Riad.Elhamoud](https://forums.nlr.gov/u/Riad.Elhamoud)\
**Post date:** [March 13, 2023, 9:27am UTC](https://forums.nlr.gov/t/error-when-coupling-moordyn-matlab/4626/2 "2023-03-13T09:27:46Z")

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Dear @Matthew.Hall

I solved the problem !