Arfoundation-samples: Undefined symbol: __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements

[TimmyBest]

Just building the example completely untouched.

Previous ARFoundation version works fine.
Xcode Version 11.0 beta 4
Unity Version 2019.2.0f1

ld: warning: Could not find or use auto-linked library 'swiftCompatibilityDynamicReplacements' ld: warning: Could not find or use auto-linked library 'swiftCompatibility50' Undefined symbols for architecture arm64: "__swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements", referenced from: __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit in UnityARKit.a(ParticipantProvider.o) __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit in UnityARKit.a(TrackableProvider.o) __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit in UnityARKit.a(Utilities.o) __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit in UnityARKit.a(EventSystem.o) __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit in UnityARKit.a(TrackableChanges.o) (maybe you meant: __swift_FORCE_LOAD_$_swiftCompatibilityDynamicReplacements_$_UnityARKit) "__swift_FORCE_LOAD_$_swiftCompatibility50", referenced from: __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit in UnityARKit.a(ParticipantProvider.o) __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit in UnityARKit.a(TrackableProvider.o) __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit in UnityARKit.a(Utilities.o) __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit in UnityARKit.a(EventSystem.o) __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit in UnityARKit.a(TrackableChanges.o) (maybe you meant: __swift_FORCE_LOAD_$_swiftCompatibility50_$_UnityARKit) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

SCREENSHOT

[TimmyBest]

Xcode Update to Version 11.0 beta 6 solved the issue

[acalism]

Create an Empty Swift file using Xcode in the project in question, and every issue will be solved by Xcode automatically.

[tdmowrer]

This issue was related to last year's Xcode beta. @acalism are you saying you are seeing this in the current version of Xcode (11.4)?

[acalism]

Xcode 11.4 works OK now. @tdmowrer thank you for your reply.

[HuuLinhDra]

I using Xcode 11.6 and have same error

[tdmowrer]

@HuuLinhDra This is an old issue and no longer relevant (we do not use Swift at all in the ARKit plugin). Could you please open a new issue with more details for your specific issue?