# Issue building for Mac (Unity)

**URL:** https://discourse.kitware.com/t/issue-building-for-mac-unity/1562
**Category:** Pulse Physiology Engine
**Created:** [October 22, 2025, 7:25pm UTC](https://discourse.kitware.com/t/issue-building-for-mac-unity/1562 "2025-10-22T19:25:26Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Ayfel](https://discourse.kitware.com/letter_avatar_proxy/v4/letter/a/8e8cbc/32.png) [@Ayfel](https://discourse.kitware.com/u/Ayfel)
#### Post date: [October 22, 2025, 7:25pm UTC](https://discourse.kitware.com/t/issue-building-for-mac-unity/1562/1 "2025-10-22T19:25:26Z")

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Trying to build for Mac and getting the following error on build:

”Plugin ‘libPulseC.dylib’ is used from several locations:  
Packages/com.caffeine/3RD/PulsePhysiologyEngine/Plugins/Native/macOSi/libPulseC.dylib would be copied to /libPulseC.dylib  
Packages/com.caffeine/3RD/PulsePhysiologyEngine/Plugins/Native/macOSs/libPulseC.dylib would be copied to /libPulseC.dylib”

 ![image](https://discourse.kitware.com/uploads/default/original/2X/0/0b2a6efc9f232e52132d739e316b33fdd4436d5c.png)

Anything I am missing?

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<div class="post-metadata">

### Author: ![Ayfel](https://discourse.kitware.com/letter_avatar_proxy/v4/letter/a/8e8cbc/32.png) [@Ayfel](https://discourse.kitware.com/u/Ayfel)
#### Post date: [October 22, 2025, 8:10pm UTC](https://discourse.kitware.com/t/issue-building-for-mac-unity/1562/2 "2025-10-22T20:10:14Z")

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For anyone finding the same issue, it has to do with the import settings for these two files, you have to assign them to silicon or intel as they are for different targets, and by default they target “Any” CPU

 ![image](https://discourse.kitware.com/uploads/default/original/2X/c/c50f9089e30cc5e1c7c667d6a30bd68cc6b3185a.png)