# Unable to open \*.dyn file

**URL:** <https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505>\
**Category:** Civil 3D\
**Tags:** dynamo\
**Created:** [September 5, 2023, 5:51pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505 "2023-09-05T17:51:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![kina\_86](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@kina\_86](https://forum.dynamobim.com/u/kina_86)\
**Post date:** [September 5, 2023, 5:51pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505/1 "2023-09-05T17:51:27Z")

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Hello!  
I create a .dyn file in C3D 2021 and yesterday when i try to continuu my ideea in C3D 2023, after i work in this version and was everything ok, i was unable to open this file.  
I have a back-up file but it s an old version.  
I was trying 3 steps form this [topic](https://forum.dynamobim.com/t/faq-my-dyn-dyf-file-from-2-12-2-13-wont-open-in-older-versions-of-dynamo/74049) but without succes.

[imput.dyn](https://forum.dynamobim.com/uploads/short-url/8Fjur6klAJv5sSKUlnz9lK56kvA.dyn) (128.8 KB)

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<div class="post-metadata">

**Author:** ![Mike.Buttery](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mike.Buttery](https://forum.dynamobim.com/u/Mike.Buttery)\
**Post date:** [September 5, 2023, 11:50pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505/2 "2023-09-05T23:50:29Z")

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I had a dig in the file and all of the suggestions in the link didn’t work.  
I was able to get the file to open by changing line 3230 from `"NodeLibraryDependencies": null,` to `"NodeLibraryDependencies": [],`

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<div class="post-metadata">

**Author:** ![kina\_86](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@kina\_86](https://forum.dynamobim.com/u/kina_86)\
**Post date:** [September 6, 2023, 2:22pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505/3 "2023-09-06T14:22:30Z")

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Work fine, but with this change i have all nodes with the same insert point ( overlap each other). Do you have any idea?

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<div class="post-metadata">

**Author:** ![patrick.ericson](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/patrick.ericson/32/121411_2.png) [@patrick.ericson](https://forum.dynamobim.com/u/patrick.ericson)\
**Post date:** [September 6, 2023, 2:25pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505/4 "2023-09-06T14:25:57Z")

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Try to select them all and on your keyboard click Ctrl+L to let Dynamo align them.

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<div class="post-metadata">

**Author:** ![kina\_86](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@kina\_86](https://forum.dynamobim.com/u/kina_86)\
**Post date:** [September 6, 2023, 5:44pm UTC](https://forum.dynamobim.com/t/unable-to-open-dyn-file/93505/5 "2023-09-06T17:44:43Z")

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Thank you very much!