Xcode : Undefined symbols Error

[cinephile231]

Hello? Unity has been updated to 2021.3.31f and ARCore Extention has been updated to 1.4.0. Xcode has been updated to 15.1. Everything happened at the same time.

The following error appears: It seems to be a problem with ARCore Extension. What should I do? Andorid builds well.

ld: warning: ignoring duplicate libraries: '-lc++'
ld: warning: Could not find or use auto-linked framework 'CoreAudioTypes': framework 'CoreAudioTypes' not found
ld: Undefined symbols:
  _ArConfig_getStreetscapeGeometryMode, referenced from:
      _ExternApi_ArConfig_getStreetscapeGeometryMode_m2E682FB9C207E1B3C97D72FB0ABD3075A60C918D in Google.XR.ARCoreExtensions.o
  _ArConfig_setStreetscapeGeometryMode, referenced from:
      _ConfigApi_UpdateSessionConfig_m4E822D0FD8CCE121837E04A14B703947A3E63C49 in Google.XR.ARCoreExtensions.o
      _ExternApi_ArConfig_setStreetscapeGeometryMode_m79C5DE64663BF9988803A24341685DCA09044B9F in Google.XR.ARCoreExtensions.o
  _ArEarth_resolveAnchorOnRooftopAsync, referenced from:
      _EarthApi_ResolveAnchorOnRooftopFuture_m0474B6638953C32D37176C153BCA266336A680E8 in Google.XR.ARCoreExtensions.o
      _ExternApi_ArEarth_resolveAnchorOnRooftopAsync_mE94E6526F861B66E770174D06CC7B6B652B7962D in Google.XR.ARCoreExtensions.o

(...)

  _ArTrackable_getType, referenced from:
      _RaycastApi_IsValidHit_m0513E011283448D20CBE4310C614696149A2B150 in Google.XR.ARCoreExtensions.o
      _ExternApi_ArTrackable_getType_m53EEAC21462ED99C06E31A969BC36CC9184393DF in Google.XR.ARCoreExtensions.o
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[maxcelar]

We're having the same issue with 1.40.0. Did you manage to resolve this?

[letuan11191]

Same issue Unity 2023.3.33f1 Xcode 15 ARCore Extension 1.40.0 Andorid builds well but IOS is same error

[cinephile231]

We're having the same issue with 1.40.0. Did you manage to resolve this?

No, not yet...

[maxcelar]

@cinephile231 & @letuan11191 We're not getting the errors anymore. Not exactly sure what was the issue, but make sure you:

1. update your cocoapods repos: run pod repo update in the build folder, then pod install
2. Add -ld64 flag to Targets>Unity-iPhone>Build Settings>Linking-General>Other Linker Flags in XCode
3. Add -ld64 flag to Targers>UnityFramework>Build Settings>Linking-General>Other Linker Flags>Multiple Values

XCode version 15.0.1 Unity version 2023.2

[cinephile231]

@cinephile231 & @letuan11191 We're not getting the issue anymore. Not exactly sure what was the issue, but make sure you:

1. update your cocoapods repos: run pod repo update in the build folder, then pod install
2. Add -ld64 flag to Targets>Unity-iPhone>Build Settings>Linking-General>Other Linker Flags in XCode
3. Add -ld64 flag to Targers>UnityFramework>Build Settings>Linking-General>Other Linker Flags>""

XCode version 15.0.1 Unity version 2023.2

Thank You! I'll try it.

[15kingben]

Thanks @maxcelar for that solution, it appears to be a discrepancy with the new linker. Either using the -ld64 flag or potentially updating to a newer version of XCode should fix the linking errors. Please close this issue if the problem is resolved.

[cinephile231]

Thanks @maxcelar for that solution, it appears to be a discrepancy with the new linker. Either using the -ld64 flag or potentially updating to a newer version of XCode should fix the linking errors. Please close this issue if the problem is resolved.

I haven't tested it yet. I'll close it when it's resolved.

[cinephile231]

2. -ld64

More errors appear ![Uploading errors.png…]()

[15kingben]

I'm not able to view this image, can you reupload?

[cinephile231]

I'm not able to view this image, can you reupload?

https://drive.google.com/file/d/1zNIcG-6xdwQlVXhLitd_9M74y9eOgDyt/view?usp=sharing

I do not know. I tried following what you kindly answered above, but I got more errors.