# UE4 MacOS build to iOS fails with "plugin fmodstudio failed to load" on my iPhone
**URL:** https://qa.fmod.com/t/ue4-macos-build-to-ios-fails-with-plugin-fmodstudio-failed-to-load-on-my-iphone/17067
**Category:** Unreal Engine
**Created:** [April 17, 2021, 10:07pm UTC](https://qa.fmod.com/t/ue4-macos-build-to-ios-fails-with-plugin-fmodstudio-failed-to-load-on-my-iphone/17067 "2021-04-17T22:07:29Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@vekien](https://qa.fmod.com/u/vekien)
#### Post date: [April 17, 2021, 10:07pm UTC](https://qa.fmod.com/t/ue4-macos-build-to-ios-fails-with-plugin-fmodstudio-failed-to-load-on-my-iphone/17067/1 "2021-04-17T22:07:29Z")
Hello,
I have fmodstudio installed on UE4 and it’s been working a dream, fine in editor, fine in desktop builds…
However I am currently building for my phone and I keep getting "Plugin ‘fmodstudio’ failed to load because module ‘FMODStudio’ could not be found. Please ensure the plugin is properly installed, otherwise consider disabling the plugin for this project’.
- I am using Mac OS Big Sur
- I am not using Remote Build
- I am using project launcher “Launch \> Project Launch”
I have added in Mobile to my build platforms (even though it doesn’t build a mobile folder so thats confusing), I’ve tried to set Desktop as my main track, no luck, I’ve tried including/excluding editor content, no luck. I have “FMOD” as additional non-asset includes, no luck…
Running out of things do try.
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### Author:  [@vekien](https://qa.fmod.com/u/vekien)
#### Post date: [April 20, 2021, 2:36pm UTC](https://qa.fmod.com/t/ue4-macos-build-to-ios-fails-with-plugin-fmodstudio-failed-to-load-on-my-iphone/17067/2 "2021-04-20T14:36:52Z")
Can close this, I’ve no idea what I did to fix it. A new pipeline, fixing the whitelist directory, or upgrading from 4.25 to 4.26, clearing our immediate/cache folders, something must have fixed it. I guess just “clean slate” is a good idea!
Can close this