receive a swift error when compiling in xcode

[overlordxxx]

CompileSwiftSources normal arm64 com.apple.xcode.tools.swift.compiler
cd /Users/johniriye/Downloads/ARTagger-master
export DEVELOPER_DIR=/Applications/Xcode-beta.app/Contents/Developer
export PATH="/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode-beta.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
export SDKROOT=/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.0.sdk
/Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -incremental -module-name ARTagger -Onone -DDEBUG -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.0.sdk -target arm64-apple-ios11.0 -g -module-cache-path /Users/johniriye/Library/Developer/Xcode/DerivedData/ModuleCache -Xfrontend -serialize-debugging-options -embed-bitcode-marker -enable-testing -index-store-path /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Index/DataStore -swift-version 4 -I /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Products/Debug-iphoneos -F /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Products/Debug-iphoneos -c -j8 /Users/johniriye/Downloads/ARTagger-master/ARTagger/ViewController.swift /Users/johniriye/Downloads/github/PlacingObjects/ARKitExample/Utilities.swift /Users/johniriye/Downloads/ARTagger-master/ARTagger/AppDelegate.swift -output-file-map /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/Objects-normal/arm64/ARTagger-OutputFileMap.json -parseable-output -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/Objects-normal/arm64/ARTagger.swiftmodule -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/ARTagger-generated-files.hmap -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/ARTagger-own-target-headers.hmap -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/ARTagger-all-target-headers.hmap -Xcc -iquote -Xcc /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/ARTagger-project-headers.hmap -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Products/Debug-iphoneos/include -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/DerivedSources/arm64 -Xcc -I/Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/DerivedSources -Xcc -DDEBUG=1 -emit-objc-header -emit-objc-header-path /Users/johniriye/Library/Developer/Xcode/DerivedData/ARTagger-epfabmnlntbbjtdvdnzvtvzukyfs/Build/Intermediates.noindex/ARTagger.build/Debug-iphoneos/ARTagger.build/Objects-normal/arm64/ARTagger-Swift.h -Xcc -working-directory/Users/johniriye/Downloads/ARTagger-master

:0: error: no such file or directory: '/Users/johniriye/Downloads/github/PlacingObjects/ARKitExample/Utilities.swift'
Command /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1