# Xcode 11.3.1 Linker Errors after upgrading from FMOD 1.10 to 2.00.08

**URL:** <https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537>\
**Category:** Unity\
**Created:** [March 11, 2020, 6:11am UTC](https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537 "2020-03-11T06:11:38Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![AndyD](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@AndyD](https://qa.fmod.com/u/AndyD)\
**Post date:** [March 11, 2020, 6:11am UTC](https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537/1 "2020-03-11T06:11:38Z")

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Hi there,

I’m having some issues deploying my app on iOS.

My project is being built from Unity LTS 2017.4.37f1.

I’m getting a lot of Mach-O Linker (Id) Errors.  
Everything appears to be working without issue in Unity, nothing obvious is awry.

Here is a screen shot of the errors in Xcode just in case they provide a clue.

Any assistance welcome,

Cheers

 ![Screen Shot 2020-03-10 at 9.34.02 pm](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/f/fdace37f7096ed4f93cb3836aff005e0f8e87471.png)

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**Author:** ![AndyD](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@AndyD](https://qa.fmod.com/u/AndyD)\
**Post date:** [March 17, 2020, 5:48am UTC](https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537/2 "2020-03-17T05:48:51Z")

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Currently I cannot build to iOS, any help, acknowledgment of an issue or requirement for further information would be greatly appreciated. I would prefer not to roll back to an older version of FMOD if it can be avoided. Many thanks

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [March 19, 2020, 5:00am UTC](https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537/3 "2020-03-19T05:00:55Z")

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I have been unable to reproduce the issue here at all.  
Can you confirm that the FMOD iOS libs are in the correct project directory:

> {Project}/Assets/Plugins/FMOD/lib/ios/

And also that they are in the build directory:

> {BuildRoot}/Libraries/Plugins/iOS/

My next suggestion would be a full manual delete of the integration from the project folder, then re-importing the latest version.

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<div class="post-metadata">

**Author:** ![AndyD](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@AndyD](https://qa.fmod.com/u/AndyD)\
**Post date:** [March 19, 2020, 12:29pm UTC](https://qa.fmod.com/t/xcode-11-3-1-linker-errors-after-upgrading-from-fmod-1-10-to-2-00-08/15537/4 "2020-03-19T12:29:07Z")

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Dang, thank you so much for pointing out the subtle but utterly annoying error in my pipeline 😧.

I use SVN as my version control and of course .a files are by default ignored when doing a general commit, you have to manually/forcibly add them in explorer. Subsequently the iOS and TVOS plugins were missing from the project. I should have learnt by now.

Still it’s pretty annoying that Unity didn’t complain they were missing during the build process… but I’m sure there is a good reason for that 😆.

Thank you for your help 🙂