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Could we use Framework made by swift with Unreal?

I try to using ‘simple’ swift framework but compile is fail with below message…

UATHelper: 패키징 (iOS): Performing 10 actions (8 in parallel)
UATHelper: 패키징 (iOS): [1/10] sh Unzipping : /Volumes/DATA/Dev/UE_test_423/Plugins/abcd/Source/abcd/swlibtest.embeddedframework.zip → /Volumes/DATA/UE4/UE_4.23/Engine/Intermediate/UnzippedFrameworks/swlibtest/swlibtest.embeddedframework
UATHelper: 패키징 (iOS): [2/10] Compile abcd.cpp
UATHelper: 패키징 (iOS): [3/10] Compile UE_test_423.cpp
UATHelper: 패키징 (iOS): [4/10] Compile UE_test_423GameModeBase.cpp
UATHelper: 패키징 (iOS): [5/10] Compile UE_test_423.init.gen.cpp
UATHelper: 패키징 (iOS): [6/10] Compile UE_test_423GameModeBase.gen.cpp
UATHelper: 패키징 (iOS): [7/10] sh /Volumes/DATA/Dev/UE_test_423/Binaries/IOS/UE_test_423-IOS-DebugGame
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftFoundation’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftCompatibilityDynamicReplacements’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftDarwin’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftCoreFoundation’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftCore’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftCoreGraphics’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftObjectiveC’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftDispatch’
UATHelper: 패키징 (iOS): ld: warning: Could not find or use auto-linked library ‘swiftCompatibility50’
UATHelper: 패키징 (iOS): Undefined symbols for architecture arm64:
UATHelper: 패키징 (iOS): “value witness table for Builtin.UnknownObject”, referenced from:
UATHelper: 패키징 (iOS): full type metadata for swlibtest.SwiftModule in swlibtest(swlibtest.o)
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftFoundation’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftCompatibilityDynamicReplacements’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftDarwin’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftCoreFoundation’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftCore’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftCoreGraphics’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftObjectiveC’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftDispatch’
PackagingResults: Warning: Could not find or use auto-linked library ‘swiftCompatibility50’
UATHelper: 패키징 (iOS): “_swift_getInitializedObjCClass”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.init() → swlibtest.SwiftModule in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): type metadata accessor for swlibtest.SwiftModule in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.init() → swlibtest.SwiftModule in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.__deallocating_deinit in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “_swift_FORCE_LOAD$_swiftCompatibilityDynamicReplacements”, referenced from:
UATHelper: 패키징 (iOS): _swift_FORCE_LOAD$swiftCompatibilityDynamicReplacements$_swlibtest in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): (maybe you meant: _swift_FORCE_LOAD$swiftCompatibilityDynamicReplacements$_swlibtest)
UATHelper: 패키징 (iOS): “type metadata for Any”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “_swift_release”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “type metadata accessor for Swift._ContiguousArrayStorage”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “type metadata for Swift.String”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “_swift_FORCE_LOAD$_swiftCompatibility50”, referenced from:
UATHelper: 패키징 (iOS): _swift_FORCE_LOAD$swiftCompatibility50$_swlibtest in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): (maybe you meant: _swift_FORCE_LOAD$swiftCompatibility50$swlibtest)
UATHelper: 패키징 (iOS): "Swift.print(
: Any…, separator: Swift.String, terminator: Swift.String) → ()", referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): “_swift_allocObject”, referenced from:
UATHelper: 패키징 (iOS): swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): @objc swlibtest.SwiftModule.test() → () in swlibtest(swlibtest.o)
UATHelper: 패키징 (iOS): ld: symbol(s) not found for architecture arm64
UATHelper: 패키징 (iOS): clang: error: linker command failed with exit code 1 (use -v to see invocation)
PackagingResults: Error: linker command failed with exit code 1 (use -v to see invocation)
UATHelper: 패키징 (iOS): Took 60.101181s to run mono, ExitCode=5
UATHelper: 패키징 (iOS): UnrealBuildTool failed. See log for more details. (/Users/sangpan/Library/Logs/Unreal Engine/LocalBuildLogs/UBT-UE_test_423-IOS-DebugGame.txt)
UATHelper: 패키징 (iOS): AutomationTool exiting with ExitCode=5 (5)
UATHelper: 패키징 (iOS): RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults: Error: AutomationTool was unable to run successfully.
PackagingResults: Error: Unknown Error

is there anybody know about this?

Swift cannot be mixed with C++. Only way is to use Objective-C instead.
Many Swift-Frameworks are made in Objective-C anyway.