# Assembly.AddSubassembly Node not working

**URL:** <https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172>\
**Category:** Civil 3D\
**Created:** [April 17, 2024, 5:19pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172 "2024-04-17T17:19:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![acoteHAQHS](https://avatars.discourse-cdn.com/v4/letter/a/b3f665/32.png) [@acoteHAQHS](https://forum.dynamobim.com/u/acoteHAQHS)\
**Post date:** [April 17, 2024, 5:19pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172/1 "2024-04-17T17:19:26Z")

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Hello i’m trying to add a custom subassembly to a blank assembly, but its not working, someone can help me?

 ![dyn](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/a/8a1eb256ee19f32b7f11e77955e5b19562964c29.png)  
 ![2](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/6/762cd7e9fa1a5979dbe8843e3dba7bd169139de3.png)  
 ![3](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/3/1/31b0392a706491580eeab512fa2c87bf678f9ae8.png)

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**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:** [April 17, 2024, 7:18pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172/2 "2024-04-17T19:18:55Z")

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When there is a read input, as for groupName, that means that you need to add information/input. Please add that input and try again.

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<div class="post-metadata">

**Author:** ![acoteHAQHS](https://avatars.discourse-cdn.com/v4/letter/a/b3f665/32.png) [@acoteHAQHS](https://forum.dynamobim.com/u/acoteHAQHS)\
**Post date:** [April 17, 2024, 7:51pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172/3 "2024-04-17T19:51:50Z")

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The problem is a blank assembly doesn’t have a group.

 ![4](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/0/f09ca7859d782a0d3b60849a14ba7e15ae273f0c.png)

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**Author:** ![Drbohlav](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/drbohlav/32/113004_2.png) [@Drbohlav](https://forum.dynamobim.com/u/Drbohlav)\
**Post date:** [April 17, 2024, 8:05pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172/4 "2024-04-17T20:05:10Z")

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Hi, read from here [Civil 3D Toolkit Feedback thread - #669 by Drbohlav](https://forum.dynamobim.com/t/civil-3d-toolkit-feedback-thread/43570/669)

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<div class="post-metadata">

**Author:** ![acoteHAQHS](https://avatars.discourse-cdn.com/v4/letter/a/b3f665/32.png) [@acoteHAQHS](https://forum.dynamobim.com/u/acoteHAQHS)\
**Post date:** [April 17, 2024, 8:34pm UTC](https://forum.dynamobim.com/t/assembly-addsubassembly-node-not-working/100172/5 "2024-04-17T20:34:13Z")

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What you mean by regen? The civil drawing?