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SwiftSupport folder is missing

append delete 19 Jul ’25 · 00:49 Anthony

Windows 11
Builder v3.74
Swift 6.1.2
iOS SDK 18.5

Hi Pierre-Marie,
I've been getting this error for months now and updating the builder and SDK don't seem to help. The app compiles without problem it's only when I submit it to the appstore connect that I'm getting this error:

ITMS-90426: Invalid Swift Support - The SwiftSupport folder is missing. Rebuild your app using the current public (GM) version of Xcode and resubmit it.

I would really appreciate your help.
Thank you!!
Anthony

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append delete 19 Jul ’25 · 11:58 #1. Pierre-Marie Baty

This error happens when your minimum build target is set too low, i.e. to a generation of devices that didn't have any Swift libraries in the base system. Raise your minimum build target (on the Unity side, iOS project settings) and it should fix the problem. Let me know if that was not the case.

append delete 19 Jul ’25 · 15:51 #2. Anthony

Thanks for your fast reply!
Do you mean the "Target Minimum iOS Version" ? it's set to 17.0 at the moment. Which is fairly recent (released 2 years ago only) I just tried 18.0 and got the same error. Could it be something else?

append delete 19 Jul ’25 · 16:58 #3. Pierre-Marie Baty

17.0 is okay - no need to change it. The reason must be elsewhere. Does your project include precompiled binaries or frameworks ?

append delete 19 Jul ’25 · 17:02 #4. Anthony

I just tried with 18.5, and did a full rebuild. Same error.

append delete 19 Jul ’25 · 17:05 #5. Anthony

In term of binaries, I'm using one call libOVRLipSync.dylib for lip syncing and also my own .mm script to change some audio recording/playback settings

:: @Anthony added on 19 Jul ’25 · 17:10

on the libOVRLipSync.dylib, the import settings are set like this:
Platform: iOS
"Add to embedded binaries" is checked
"Load on startup" is checked

There is also a libOVRLipSyncShim.a with these settings:
Platform: iOS
"Add to embedded binaries" is unchecked
"Load on startup" is unchecked

:: @Anthony added on 19 Jul ’25 · 17:32

I tried another build where I unchecked, the settings:
"Add to embedded binaries" and "Load on startup"

Got the same error.

append delete 19 Jul ’25 · 22:37 #6. Pierre-Marie Baty

It is possible that this library libOVRLipSync.dylib was compiled from legacy Swift code for an old target. You can check if it’s the case by using "otool" on it to display its Mach-O load commands. If that’s the case, see if you can obtain an updated version.

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