# Lesson 9 – Package Manager for SysML v2

**URL:** <https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398>\
**Category:** Advent of SysML v2\
**Created:** [February 16, 2026, 5:19am UTC](https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398 "2026-02-16T05:19:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Horacio\_Ruiz\_Sanchez](https://yyz2.discourse-cdn.com/flex008/user_avatar/forum.sensmetry.com/horacio_ruiz_sanchez/32/220_2.png) [@Horacio\_Ruiz\_Sanchez](https://forum.sensmetry.com/u/Horacio_Ruiz_Sanchez)\
**Post date:** [February 16, 2026, 5:19am UTC](https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398/1 "2026-02-16T05:19:50Z")

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I am working with advanced SysML v2 libraries like **\*\*ArchitectureDesign\*\*** and **\*\*LCA\*\*** (Life Cycle Assessment) from the Sysand ecosystem and I have encountered this frustrating error:

error (reference-error): No Namespace named ‘ArchitectureDesign’ found.

error (reference-error): No Namespace named ‘LCA’ found.

This happens even when I reopen my project.

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**Author:** ![Simas](https://yyz2.discourse-cdn.com/flex008/user_avatar/forum.sensmetry.com/simas/32/41_2.png) [@Simas](https://forum.sensmetry.com/u/Simas)\
**Post date:** [February 17, 2026, 10:47am UTC](https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398/2 "2026-02-17T10:47:42Z")

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Hi Horacio,

Can you see the downloaded library files in your VS Code workspace? Modeler loads all SysML v2 files within the active workspace, so if the project is in a different location, you will get reference errors.

Also, if you downloaded kpar manually, make sure it has been extracted and that the actual SysML files are available.

Best,

Simas