<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Actually, you don’t have to write any code. Just make a new project using a single view application and try to build it. I’ve re-downloaded the developer build and even downloaded Xcode again from the App store.<div class=""><br class=""><div class="">Here is the error that Xcode reports:<div class=""><br class=""></div><div class=""><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">CompileSwift normal x86_64 /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff/iosTestforJGroff/AppDelegate.swift</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> cd /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swift -frontend -c /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff/iosTestforJGroff/ViewController.swift -primary-file /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff/iosTestforJGroff/AppDelegate.swift -target x86_64-apple-ios9.3 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.3.sdk -I /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator -F /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/charleslane/Library/Developer/Xcode/DerivedData/ModuleCache -serialize-debugging-options -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-generated-files.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-own-target-headers.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-all-target-headers.hmap -Xcc -iquote -Xcc /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-project-headers.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/DerivedSources/x86_64 -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff -emit-module-doc-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate~partial.swiftdoc -Onone -module-name iosTestforJGroff -emit-module-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate~partial.swiftmodule -serialize-diagnostics-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.dia -emit-dependencies-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.d -emit-reference-dependencies-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.swiftdeps -o /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.o</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">Assertion failed: (UIApplicationMainFn && "UIKit not imported?"), function emitArtificialTopLevel, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/swift/lib/SILGen/SILGenFunction.cpp, line 508.</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">0 swift 0x000000010fdb07eb llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 43</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">1 swift 0x000000010fdafa76 llvm::sys::RunSignalHandlers() + 70</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">2 swift 0x000000010fdb0ebf SignalHandler(int) + 383</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">3 libsystem_platform.dylib 0x00007fff9504652a _sigtramp + 26</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">4 swift 0x0000000110861390 FirstTarget + 71400</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">5 swift 0x000000010fdb0c96 abort + 22</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">6 swift 0x000000010fdb0c71 __assert_rtn + 81</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">7 swift 0x000000010d51175b swift::Lowering::SILGenFunction::emitArtificialTopLevel(swift::ClassDecl*) + 5211</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">8 swift 0x000000010d4b1198 swift::Lowering::SILGenModule::emitSourceFile(swift::SourceFile*, unsigned int) + 3768</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">9 swift 0x000000010d4b17a0 swift::SILModule::constructSIL(swift::ModuleDecl*, swift::SILOptions&, swift::FileUnit*, llvm::Optional<unsigned int>, bool, bool) + 928</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">10 swift 0x000000010d4b1cc5 swift::performSILGeneration(swift::FileUnit&, swift::SILOptions&, llvm::Optional<unsigned int>, bool) + 117</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">11 swift 0x000000010d218c47 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&) + 13543</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">12 swift 0x000000010d2148af frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 2879</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">13 swift 0x000000010d20fdad main + 2637</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">14 libdyld.dylib 0x00007fff9ca3e5ad start + 1</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">15 libdyld.dylib 0x000000000000003b start + 1666980495</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">Stack dump:</div><div style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">0.<span class="Apple-tab-span" style="white-space: pre;"> </span>Program arguments: /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swift -frontend -c /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff/iosTestforJGroff/ViewController.swift -primary-file /Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff/iosTestforJGroff/AppDelegate.swift -target x86_64-apple-ios9.3 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.3.sdk -I /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator -F /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/charleslane/Library/Developer/Xcode/DerivedData/ModuleCache -serialize-debugging-options -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-generated-files.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-own-target-headers.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-all-target-headers.hmap -Xcc -iquote -Xcc /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/iosTestforJGroff-project-headers.hmap -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/DerivedSources/x86_64 -Xcc -I/Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/charleslane/SWDev/SwiftFiles/MiscProjects/iosTestforJGroff -emit-module-doc-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate~partial.swiftdoc -Onone -module-name iosTestforJGroff -emit-module-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate~partial.swiftmodule -serialize-diagnostics-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.dia -emit-dependencies-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.d -emit-reference-dependencies-path /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.swiftdeps -o /Users/charleslane/Library/Developer/Xcode/DerivedData/iosTestforJGroff-faanxccoissojpdbyetnddefzcpz/Build/Intermediates/iosTestforJGroff.build/Debug-iphonesimulator/iosTestforJGroff.build/Objects-normal/x86_64/AppDelegate.o </div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Chuck Lane</div></div><div class=""><br class=""></div></div></div></body></html>