我在Macbook Air上运行Yosemite 10.10.4。我有许多Xcode项目在Xcode 6.4下成功运行。但是，我从Apple下载了Xcode 5.02，以便使用Big Nerd Ranch书籍＃34; IOS Programming＆＃34;这是为Xcode 5编写的。每次打开xib文件时，Xcode都会崩溃。按照建议，我打开了控制台应用程序，找到了崩溃日志，并将其复制了。
Process: Interface Builder Cocoa Touch Tool [1370]
Path: /Applications/Xcode 2.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/Xcode/Overlays/Interface Builder Cocoa Touch Tool
Identifier: Interface Builder Cocoa Touch Tool
Version: 4.3 (141)
Code Type: X86 (Native)
Parent Process: Xcode [1315]
Responsible: Xcode [1315]
User ID: 501
Date/Time: 2015-08-16 17:49:29.223 -0500
OS Version: Mac OS X 10.10.4 (14E46)
Report Version: 11
Anonymous UUID: EFE6107D-FC8B-4F16-13CF-5078BA3A872D
Sleep/Wake UUID: AC708070-A2AD-4BD3-97E0-72E185438011
Time Awake Since Boot: 2400 seconds
Time Since Wake: 1400 seconds
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x94ecb69a __pthread_kill + 10
1 libsystem_pthread.dylib 0x92192f19 pthread_kill + 101
2 libsystem_sim_c.dylib 0x02a78e12 abort + 127
3 libsystem_sim_c.dylib 0x02a43900 __assert_rtn + 284
4 libsystem_override.dylib 0x0297e73c _sim_host_bootstrap_init + 264
5 libsystem_override.dylib 0x0297e7aa _sim_host_bootstrap_port + 26
6 libxpc.dylib 0x02ba4b06 _libxpc_initializer + 870
7 libSystem.B.dylib 0x98a9daae libSystem_initializer + 167
8 dyld 0x8fe710b3 ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) + 291
9 dyld 0x8fe71218 ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 64
10 dyld 0x8fe6d2f0 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 296
11 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
12 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
13 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
14 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
15 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
16 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
17 dyld 0x8fe6d288 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 192
18 dyld 0x8fe6d176 ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 120
19 dyld 0x8fe6d3e1 ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) + 79
20 dyld 0x8fe5f125 dyld::initializeMainExecutable() + 183
21 dyld 0x8fe62bad dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) + 2793
22 dyld 0x8fe5e232 dyldbootstrap::start(macho_header const*, int, char const**, long, macho_header const*, unsigned long*) + 428
23 dyld 0x8fe5e047 _dyld_start + 71
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x02980015 ecx: 0xbfffd5ac edx: 0x00000000
edi: 0xa08481d4 esi: 0x00000006 ebp: 0xbfffd5c8 esp: 0xbfffd5ac
ss: 0x00000023 efl: 0x00000206 eip: 0x94ecb69a cs: 0x0000000b
ds: 0x00000023 es: 0x00000023 fs: 0x00000000 gs: 0x0000000f
cr2: 0x02a78d93
Logical CPU: 0
Error Code: 0x00080148
Trap Number: 132