Xcode 6.1 编译错误

Question

一个月前，我开始使用 Swift 开发一个项目。我在 XCode 6.0 中开始了这个项目，昨天我将 XCode 更新到了 6.1 版。在此更新之后，我无法编译该项目，并且出现了奇怪的编译错误（编译也需要大约 10 分钟）。我没有更改项目内部的任何内容，我已经测试过，当我创建新的 Swift 项目时我能够编译它，我尝试清理项目，重新启动 OS X 并且基本上我已经用完了选项。 ..

这是我得到的日志（它有一个标题Command failed due to signal: Killed: 9）

CompileSwift normal arm64 /Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift
    cd /Users/premyslsemerad/Code iOS/BriLife/BriLife GIT
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THRegisterVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THLoginVC.swift" "/Users/premyslsemerad/Code iOS/THKit/THVault.swift" -primary-file "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Libraries/Snappy/View.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THSplashVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/AppDelegate.swift" "/Users/premyslsemerad/Code iOS/THKit/UITableView+Pagination.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THModelAPI.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THCellMyGIFs.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Libraries/Snappy/ConstraintMaker.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THTextField.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THRefreshControl.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THCellComment.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THBriLifeMenu.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THViewFinishOverlay.swift" "/Users/premyslsemerad/Code iOS/THKit/Async.swift" "/Users/premyslsemerad/Code iOS/THKit/THAPIHelpers.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THViewSelection.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THCellCreateGIF.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THMenuButton.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THCommentsVC.swift" "/Users/premyslsemerad/Code iOS/THKit/THUIHelpers.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THHomeVC.swift" "/Users/premyslsemerad/Code iOS/THKit/THLoader.swift" "/Users/premyslsemerad/Code iOS/THKit/THCustomLog.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THFinishGIFVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Libraries/Snappy/Constraint.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THProfileVC.swift" "/Users/premyslsemerad/Code iOS/THKit/THObjectHelpers.swift" "/Users/premyslsemerad/Code iOS/THKit/THActivityIndicator.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THGIFImageView.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Libraries/Snappy/LayoutConstraint.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THSettingsVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THMyGIFsVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THGeneralVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THViewEmpty.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Controllers/THCreateGIFVC.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Views/THCellFeed.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Libraries/Snappy/Insets.swift" "/Users/premyslsemerad/Code iOS/THKit/THLanguage.swift" "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THModel.swift" -target arm64-apple-ios8.0 -Xllvm -aarch64-use-tbi -target-cpu cyclone -target-abi darwinpcs -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.1.sdk -I /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Products/Debug-iphoneos -F /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Products/Debug-iphoneos -g -import-objc-header "/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/briLife-Bridging-Header.h" -module-cache-path /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/ModuleCache -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/briLife-generated-files.hmap -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/briLife-own-target-headers.hmap -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/briLife-all-target-headers.hmap -Xcc -iquote -Xcc /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/briLife-project-headers.hmap -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Products/Debug-iphoneos/include -Xcc "-I/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/Pods/Headers" -Xcc "-I/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/Pods/Headers/AFNetworking" -Xcc "-I/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/Pods/Headers/CHTCollectionViewWaterfallLayout" -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/DerivedSources/arm64 -Xcc -I/Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -DCOCOAPODS=1 -emit-module-doc-path /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/Objects-normal/arm64/THObjects~partial.swiftdoc -Onone -module-name briLife -emit-module-path /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/Objects-normal/arm64/THObjects~partial.swiftmodule -serialize-diagnostics-path /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/Objects-normal/arm64/THObjects.dia -emit-dependencies-path /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/Objects-normal/arm64/THObjects.d -o /Users/premyslsemerad/Library/Developer/Xcode/DerivedData/briLife-fekikiofbzmwsyfqzuakvqqhhapv/Build/Intermediates/briLife.build/Debug-iphoneos/briLife.build/Objects-normal/arm64/THObjects.o

/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:104:63: error: type 'CFString!' does not conform to protocol 'NSCopying'
        let cfLoopCount: AnyObject? = dictionaryGIFProperties[kCGImagePropertyGIFLoopCount]
                                                              ^
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:125:45: error: value of optional type 'UIImage?' not unwrapped; did you mean to use '!' or '?'?
            var newGifItem = GifItem(image: curImage)
                                            ^
                                                    !
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:130:66: error: type 'CFString!' does not conform to protocol 'NSCopying'
            let cfFrameDelay: AnyObject? = curFrameGIFProperties[kCGImagePropertyGIFUnclampedDelayTime]
                                                                 ^
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:171:63: error: type 'CFString!' does not conform to protocol 'Hashable'
        var fileProperties = [kCGImagePropertyGIFDictionary : [kCGImagePropertyGIFLoopCount : 0]]
                                                              ^
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:178:68: error: type 'CFString!' does not conform to protocol 'Hashable'
            var frameProperties = [kCGImagePropertyGIFDictionary : [kCGImagePropertyGIFDelayTime : oneImage.frameDelay]]
                                                                   ^
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:195:34: error: 'NSURL?' does not have a member named 'lastPathComponent'
                uwDictMyGifs += [urlFullPath.lastPathComponent : self.metadataForDefaults()]
                                 ^           ~~~~~~~~~~~~~~~~~
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:198:32: error: 'NSURL?' does not have a member named 'lastPathComponent'
                var newDict = [urlFullPath.lastPathComponent : self.metadataForDefaults()]
                               ^           ~~~~~~~~~~~~~~~~~
/Users/premyslsemerad/Code iOS/BriLife/BriLife GIT/briLife/Model/THObjects.swift:242:49: error: method 'fromRaw' has been replaced with a property 'rawValue'
        dictParams += ["category":self.category.toRaw()]
                                                ^~~~~~~
                                                rawValue

Answer 1

你主要有3个问题，

1. 可失败初始化器。
   如this article 中所述。 Swift 1.1 引入了 Failable Initializers。这意味着，初始化程序可能会失败并返回nil。您必须检查它不是nil 并打开它。这适用于：

   error: value of optional type 'UIImage?' not unwrapped; did you mean to use '!' or '?'?
   error: 'NSURL?' does not have a member named 'lastPathComponent'
   

2. CFString 处理错误
   看到这个问题：Type 'CFStringRef' does not conform to protocol 'Hashable' in Xcode 6.1。这适用于：

   error: type 'CFString!' does not conform to protocol 'NSCopying'
   error: type 'CFString!' does not conform to protocol 'Hashable'
   

   解决方法如下：

   curFrameGIFProperties[kCGImagePropertyGIFUnclampedDelayTime as NSString]
                                                               ^^^^^^^^^^^
   

3. enum原始值接口变化
   这适用于：

   error: method 'fromRaw' has been replaced with a property 'rawValue'
   

   使用rawValue属性代替toRaw()方法：

   dictParams += ["category":self.category.rawValue]