# FEM-Design API install not working \[SOLVED\]

**URL:** <https://femdesign.discourse.group/t/fem-design-api-install-not-working-solved/566>\
**Category:** Grasshopper\
**Tags:** solved\
**Created:** [4 December 2025 09:42 UTC](https://femdesign.discourse.group/t/fem-design-api-install-not-working-solved/566 "2025-12-04T09:42:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SigveCOWI](https://avatars.discourse-cdn.com/v4/letter/s/7993a0/32.png) [@SigveCOWI](https://femdesign.discourse.group/u/SigveCOWI)\
**Post date:** [4 December 2025 09:42 UTC](https://femdesign.discourse.group/t/fem-design-api-install-not-working-solved/566/1 "2025-12-04T09:42:07Z")

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Hi, I have attached a screenshot of the error code that appears after restarting Rhino/Grasshopper after installation of FEM-Design v24.2.2 on Rhino 7 via Package Manager.

The already existing FemDesign.1.2.0.gha was removed from Grasshoppers Special Forlder\>Components Folder

Thank you!

 ![c71fc42d-6e56-41b6-8f4c-ae4fd67a3dc1](https://europe1.discourse-cdn.com/flex017/uploads/femdesign_api/original/1X/441c7a959f6c00359fd9d5ae1b691c094a452588.jpeg)

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**Author:** ![MarcoPelle](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/marcopelle/32/6_2.png) [@MarcoPelle](https://femdesign.discourse.group/u/MarcoPelle)\
**Post date:** [4 December 2025 14:21 UTC](https://femdesign.discourse.group/t/fem-design-api-install-not-working-solved/566/2 "2025-12-04T14:21:44Z")

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Hi @SigveCOWI

To solve the issue, you need to update Rhinoceros 7 to the latest version.