Xcode中6和4.5的Xcode之间切换
问题描述：
使用OS X约塞米蒂Xcode中6和4.5的Xcode之间切换
移除Xcode6，和安装的Xcode 4.5本指南以下： http://iosdevelopertips.com/xcode/install-multiple-versions-of-xcode.html
下一个不同的文件夹安装的Xcode 4.5和使用命令“须藤xcode-选择--switch /Applications/Xcode4.5/Xcode.app（在终端中）切换到新的Xcode4.5版本（从上面的指导）。
收到一条错误消息，指出首次启动时安装了不兼容的“MobileDevice.Framework”。按照本指南解决该问题：Xcode 4.4.1 does not work properly under OSX Mavericks 从上面的堆栈溢出问题运行命令：“sudo rm -rf /System/Library/PrivateFrameworks/MobileDevice.framework”后，我收到了另一个我无法解析的错误之后的研究很多天：
Process: Xcode [2422]
Path: /Applications/Xcode4.5.2/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 4.5.2 (1847)
Build Info: IDEApplication-1847000000000000~5
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Xcode [2422]
User ID: 501
Date/Time: 2014-12-29 13:36:32.026 -0500
OS Version: Mac OS X 10.10.1 (14B25)
Report Version: 11
Anonymous UUID: 1076DD40-2DC4-A657-02AE-90EA3278917B
Time Awake Since Boot: 4200 seconds
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
ProductBuildVersion: 4G2008a
UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Extension Xcode.Device.iPhone class 'DVTiPhoneLocator' not found for required key 'locatorClass'
UserInfo: {
DVTExtensionClassNameErrorKey = DVTiPhoneLocator;
DVTExtensionIdentifierErrorKey = "Xcode.Device.iPhone";
DVTPlugInExecutablePathErrorKey = "/Applications/Xcode4.5.2/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/PrivatePlugIns/IDEiPhoneSupport.ideplugin";
DVTPlugInIdentifierErrorKey = "com.apple.dt.IDE.IDEiPhoneSupport";
}
Hints: None
Backtrace:
0 0x00007fff85859634 __exceptionPreprocess (in CoreFoundation)
1 0x00007fff8b2ac6de objc_exception_throw (in libobjc.A.dylib)
2 0x0000000109c1eff1 -[DVTExtension _adjustClassAttribute:forKey:inParameterData:] (in DVTFoundation)
3 0x0000000109c1ec56 -[DVTExtension _adjustClassReferencesInParameterData:usingSchema:] (in DVTFoundation)
4 0x0000000109c7554f -[DVTExtension _fireExtensionFault:] (in DVTFoundation)
5 0x0000000109c75110 __63-[DVTExtension _valueForKey:inParameterData:usingSchema:error:]_block_invoke_0 (in DVTFoundation)
6 0x0000000109c9c446 __DVTDispatchSync_block_invoke_0 (in DVTFoundation)
7 0x00007fff8b210c13 _dispatch_client_callout (in libdispatch.dylib)
8 0x00007fff8b211e5e _dispatch_barrier_sync_f_invoke (in libdispatch.dylib)
9 0x0000000109c9c263 DVTDispatchSync (in DVTFoundation)
10 0x0000000109c9c077 DVTSyncPerformBlock (in DVTFoundation)
11 0x0000000109bf917d -[DVTDispatchLock performLockedBlock:] (in DVTFoundation)
12 0x0000000109c75007 -[DVTExtension _valueForKey:inParameterData:usingSchema:error:] (in DVTFoundation)
13 0x0000000109c1e40d -[DVTExtension valueForKey:] (in DVTFoundation)
14 0x0000000109c23c03 +[DVTDevice _knownDeviceLocators] (in DVTFoundation)
15 0x0000000109c237bc -[DVTDeviceManager startLocating] (in DVTFoundation)
16 0x000000010a50d3d3 __IDEInitialize_block_invoke_0 (in IDEFoundation)
17 0x000000010a50d986 IDESetSafeToLoadMobileDevice (in IDEFoundation)
18 0x000000010a81f6e3 -[IDEWelcomeWindowController _showFirstLaunchExperienceIfAppropriate] (in IDEKit)
19 0x000000010a81f604 -[IDEWelcomeWindowController openWelcomeWindowAfterFirstLaunchExperienceIfAppropriate:] (in IDEKit)
20 0x000000010a81f56e -[IDEApplicationController applicationOpenUntitledFile:] (in IDEKit)
21 0x00007fff8dcdfa5a -[NSApplication _doOpenUntitled] (in AppKit)
22 0x00007fff8dc18b91 __58-[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:]_block_invoke (in AppKit)
23 0x00007fff8e33e5b0 __95-[NSPersistentUIManager restoreAllPersistentStateRegisteringAsReadyWhenDone:completionHandler:]_block_invoke557 (in AppKit)
24 0x00007fff8df22389 __97-[NSDocumentController(NSInternal) _autoreopenDocumentsIgnoringExpendable:withCompletionHandler:]_block_invoke_3 (in AppKit)
25 0x00007fff8df21d81 -[NSDocumentController(NSInternal) _autoreopenDocumentsIgnoringExpendable:withCompletionHandler:] (in AppKit)
26 0x00007fff8dc11354 -[NSPersistentUIRestorer finishedRestoringWindowsWithZOrder:completionHandler:] (in AppKit)
27 0x00007fff8dac262c -[NSPersistentUIRestorer restoreStateFromRecords:usingDelegate:completionHandler:] (in AppKit)
28 0x00007fff8dac1c91 -[NSPersistentUIManager restoreAllPersistentStateRegisteringAsReadyWhenDone:completionHandler:] (in AppKit)
29 0x00007fff8dac0f37 -[NSApplication _reopenWindowsAsNecessaryIncludingRestorableState:registeringAsReady:completionHandler:] (in AppKit)
30 0x00007fff8dac0c69 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] (in AppKit)
31 0x00007fff8dac06b5 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] (in AppKit)
32 0x00007fff8621a458 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] (in Foundation)
33 0x00007fff8621a2c9 _NSAppleEventManagerGenericHandler (in Foundation)
34 0x00007fff920d499c aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) (in AE)
35 0x00007fff920d4719 dispatchEventAndSendReply(AEDesc const*, AEDesc*) (in AE)
36 0x00007fff920d4623 aeProcessAppleEvent (in AE)
37 0x00007fff8fcdb37e AEProcessAppleEvent (in HIToolbox)
38 0x00007fff8dabcd76 _DPSNextEvent (in AppKit)
39 0x00007fff8dabbe80 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit)
40 0x00007fff8daafe23 -[NSApplication run] (in AppKit)
41 0x00007fff8da9b2d4 NSApplicationMain (in AppKit)
42 0x0000000109bead17 (in Xcode)
43 0x0000000109beaca8 (in Xcode)
答
它看起来像，因为10.10是没有办法可以让工作的Xcode 4.5和Xcode的4.4（虽然OSX 10.9允许这种解决方法）
所以，你应该使用OSX 10.9（小牛）如果你想开始他们。
And ...为什么要使用Xcode 4.5？我不知道有什么理由使用它。
Xcode 4.4.1 - 允许在armv6设备上进行调试的最新版本。
Xcode 4.6.3 - 包含iOS 7设计（SDK 6.1）之前的最后一个SDK。
但Xcode 4.5.2的原因是什么？