# Grasshopper component error

**URL:** <https://discourse.mcneel.com/t/grasshopper-component-error/169059>\
**Category:** Tekla\
**Tags:** windows, components\
**Created:** [November 13, 2023, 7:04am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059 "2023-11-13T07:04:55Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![Egidijus\_Grėbliūnas](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/egidijus_gr%C4%97bli%C5%ABnas/32/507222_2.png) [@Egidijus\_Grėbliūnas](https://discourse.mcneel.com/u/Egidijus_Gr%C4%97bli%C5%ABnas)\
**Post date:** [November 13, 2023, 7:04am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/1 "2023-11-13T07:04:55Z")

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Greetings,

I’m getting this error when opening grasshopper component (version 1.3). I have evaluation license for rhinoceros 8, any idea what could be causing this?  
 ![error](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/8/e/68e84af1f921158c21eba30f12298a3914a19356.jpeg)

![tekla](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/0/3/003b917580a93392b61ab64ab7478d64f366dbe8.jpeg)

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**Author:** ![sebastian.lindholm](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sebastian.lindholm/32/721567_2.png) [@sebastian.lindholm](https://discourse.mcneel.com/u/sebastian.lindholm)\
**Post date:** [November 13, 2023, 7:39am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/2 "2023-11-13T07:39:50Z")

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Hi Egidijus,

It seems to be because of the fact that Rhino 8 uses .NET core rather than .NET framework. Check this post on how to remedy the situation:

> [@Grasshopper (Rhino 7) Inside Tekla (Version 2021 SP9) error](https://discourse.mcneel.com/t/grasshopper-rhino-7-inside-tekla-version-2021-sp9-error/168708/3):
>
> Hi, thanks for reporting. The Grasshopper Component will use the newest version of Rhino it can find that’s not WIP, so it will switch to use the newly released final version of Rhino 8 if you’ve got that installed. The problem is that Rhino 8 uses .NET 7 per default rather than the .NET Framework, which doesn’t seem to work with Tekla. To get the Tekla-Grasshopper link to work from within Grasshopper with Rhino 8, the fix as per the article is to use the SetDotNetRuntime command and set it…

Cheers,

-b

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<div class="post-metadata">

**Author:** ![Egidijus\_Grėbliūnas](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/egidijus_gr%C4%97bli%C5%ABnas/32/507222_2.png) [@Egidijus\_Grėbliūnas](https://discourse.mcneel.com/u/Egidijus_Gr%C4%97bli%C5%ABnas)\
**Post date:** [November 13, 2023, 8:16am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/3 "2023-11-13T08:16:05Z")

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Thanks for quick response.

The error that appeared at first is now gone but I’ve got another one now:

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/e/a/3/ea31aa3edfe7e7adc714740b409f334b146b01ea.png)

Looks like linking problem but it in grasshopper, I can see it uses the version provided by your reply post.

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/8/3/8/83807beb65b6aded74bb75e79fd263d895bbca14.png)

The file in components library isn’t locked:

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/d/0/6/d06cdead35e1de17bb2eabbe272b9487bf1cbc7b.png)

Any ideas?

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<div class="post-metadata">

**Author:** ![sebastian.lindholm](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sebastian.lindholm/32/721567_2.png) [@sebastian.lindholm](https://discourse.mcneel.com/u/sebastian.lindholm)\
**Post date:** [November 13, 2023, 8:43am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/4 "2023-11-13T08:43:39Z")

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I assume the dialog in Tekla remains unpopulated after closing the warning, but can you still click the pen button to open the script in GH from the dialog?

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/7/c/2/7c2089b074ad33b45504832ec4d12f67701deb61.png)

Is the Tekla tab visible in GH? What does the definition look like? Something else missing than the Tekla components?

Cheers,

-b

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<div class="post-metadata">

**Author:** ![Egidijus\_Grėbliūnas](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/egidijus_gr%C4%97bli%C5%ABnas/32/507222_2.png) [@Egidijus\_Grėbliūnas](https://discourse.mcneel.com/u/Egidijus_Gr%C4%97bli%C5%ABnas)\
**Post date:** [November 13, 2023, 8:50am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/5 "2023-11-13T08:50:05Z")

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After clicking “OK” on the error, I do see the Attributes and input window:

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/1/6/3/16373b864e0797c9b398ee81a5d88da8aa185525.png)

If I click on the “Open definition…” button, I get this:

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/2/c/7/2c7569ec75248c2c207b1e1dcfb8aabb43129e11.png)

Yes, tekla tab is visible in grasshopper, I don’t have many other components but the ones I do, seem to be there.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/1/3/f/13fb2a6ec4da49d17e3771f6a72c4e15f13bfa95.png)

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<div class="post-metadata">

**Author:** ![sebastian.lindholm](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sebastian.lindholm/32/721567_2.png) [@sebastian.lindholm](https://discourse.mcneel.com/u/sebastian.lindholm)\
**Post date:** [November 13, 2023, 12:53pm UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/6 "2023-11-13T12:53:20Z")

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Hi, so the plugin works except for those messages then?

Here’s a small update that should show which grasshopper libraries are currently loaded when it claims that the Tekla link isn’t installed, shows up in the same message box:

[https://drive.google.com/drive/folders/1ASnmQUpP7rkC7vjthVTFF9nGkvJyfOz\_?usp=sharing](https://drive.google.com/drive/folders/1ASnmQUpP7rkC7vjthVTFF9nGkvJyfOz_?usp=sharing)

Check what this says when you have a chance. You probably need to uninstall the previous version with the Extension Manager in Tekla first.

Cheers,

-b

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<div class="post-metadata">

**Author:** ![Egidijus\_Grėbliūnas](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/egidijus_gr%C4%97bli%C5%ABnas/32/507222_2.png) [@Egidijus\_Grėbliūnas](https://discourse.mcneel.com/u/Egidijus_Gr%C4%97bli%C5%ABnas)\
**Post date:** [November 13, 2023, 1:46pm UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/7 "2023-11-13T13:46:00Z")

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It worked now.

I think the 1.3 version plugin uninstall was stuck and didn’t uninstall it properly since I had to kill everything associated with Tekla in task manager.

I did start getting the crashes with the GhPython.ga, after removing it, no more crashes or anything.

Thank you very much!

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<div class="post-metadata">

**Author:** ![sebastian.lindholm](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sebastian.lindholm/32/721567_2.png) [@sebastian.lindholm](https://discourse.mcneel.com/u/sebastian.lindholm)\
**Post date:** [November 13, 2023, 1:57pm UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/8 "2023-11-13T13:57:41Z")

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Alright thanks for confirming, then we’re down to the errors I can actually replicate 😅 We’ll see if we can tackle those as well in the near-ish future.

Cheers,

-b

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<div class="post-metadata">

**Author:** ![Niklas\_Edlind](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/niklas_edlind/32/541353_2.png) [@Niklas\_Edlind](https://discourse.mcneel.com/u/Niklas_Edlind)\
**Post date:** [January 30, 2024, 10:45am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/9 "2024-01-30T10:45:25Z")

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Hi there,

I’m having the same issue as in Egidijus first post, though I haven’t installed Rhino 8. The only difference that I can think of is that I have been starting out with C# development and there may have been some .NET installations.

I tried the 1.4 plugin, but it complained that Tekla Live Link 2023.1.16 wasn’t installed. This version isn’t available yet.

Do you have any advice?

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<div class="post-metadata">

**Author:** ![Niklas\_Edlind](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/niklas_edlind/32/541353_2.png) [@Niklas\_Edlind](https://discourse.mcneel.com/u/Niklas_Edlind)\
**Post date:** [February 1, 2024, 10:40am UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/10 "2024-02-01T10:40:58Z")

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Tried removing Tekla Live Link and GH-component and reinstalling, but I’m still getting the same error. @sebastian.lindholm : Do you you have any ideas?

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<div class="post-metadata">

**Author:** ![Niklas\_Edlind](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/niklas_edlind/32/541353_2.png) [@Niklas\_Edlind](https://discourse.mcneel.com/u/Niklas_Edlind)\
**Post date:** [February 1, 2024, 4:35pm UTC](https://discourse.mcneel.com/t/grasshopper-component-error/169059/11 "2024-02-01T16:35:20Z")

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Reinstallation of Tekla did the trick 🙂