我在优胜美地DP上使用Xcode 6.0.1。当我将我的应用程序定位为在iPhone 5S / 6/6 Plus模拟器（iOS 8）上运行时，该应用程序可以正常启动。但是，我无法执行任何点击事件。屏幕看起来好像冻结了。我可以旋转屏幕，使用菜单中的“主页”和“锁定”命令。但是，除此之外，应用程序内什么都没有发生。我试图重置目录和设置。它有时会起作用。但是，它现在已停止工作。我什至尝试重新启动iMac。但没有运气。如果您遇到此问题，请让我知道，如果遇到此问题，您如何解决该问题。
Spindump日志：
Architecture: i386
Parent: launchd_sim [33451]
Responsible: launchd_sim [33451]
UID: 501
Task size: 17543 pages (+2)
CPU Time: 0.005s
Importance: Adaptive, Boosted
Thread 0x185129 priority 47 cpu time 0.005s
1001 start + 1 (libdyld.dylib) [0x7ba8ac9]
1001 main + 76 (main.m:36 in Norton Online Family) [0x100e9c]
1001 UIApplicationMain + 1526 (UIKit) [0x19f6e16]
1001 GSEventRun + 104 (GraphicsServices) [0x418c08c]
1001 GSEventRunModal + 192 (GraphicsServices) [0x418c24f]
1001 CFRunLoopRunInMode + 123 (CoreFoundation) [0x3cfcfdb]
1001 CFRunLoopRunSpecific + 443 (CoreFoundation) [0x3cfd1ab]
1000 __CFRunLoopRun + 1400 (CoreFoundation) [0x3cfd9e8]
1000 __CFRunLoopServiceMachPort + 214 (CoreFoundation) [0x3cfe606]
1000 mach_msg_trap + 10 (libsystem_kernel.dylib) [0x7ea3f7a]
*1000 ipc_mqueue_receive_continue + 0 (mach_kernel) [0xffffff80002167d0]
1 __CFRunLoopRun + 2451 (CoreFoundation) [0x3cfde03]
1 __CFRunLoopDoSource1 + 510 (CoreFoundation) [0x3d089ce]
1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53 (CoreFoundation) [0x3d08a65]
1 migHelperRecievePortCallout + 209 (AppSupport) [0x69b2ac7]
1 _XReceivedStatusBarDataAndActions + 101 (UIKit) [0x1f359f0]
1 _UIStatusBarReceivedStatusBarDataAndActions + 62 (UIKit) [0x1f32085]
1 -[UIStatusBarServer _receivedStatusBarData:actions:] + 62 (UIKit) [0x1f31f37]
1 -[UIStatusBar statusBarServer:didReceiveStatusBarData:withActions:] + 156 (UIKit) [0x1f40979]
1 -[UIStatusBarForegroundView setStatusBarData:actions:animated:] + 893 (UIKit) [0x1f267e6]
1 -[UIStatusBarForegroundView _setStatusBarData:actions:animated:] + 493 (UIKit) [0x1f263f4]
1 -[UIStatusBarLayoutManager updateItemsWithData:actions:animated:] + 236 (UIKit) [0x1f2b595]
1 -[UIStatusBarLayoutManager _updateItemView:withData:actions:animated:] + 136 (UIKit) [0x1f2bbb5]
1 -[UIStatusBarItemView setStatusBarData:actions:] + 93 (UIKit) [0x1f2a288]
1 -[UIStatusBarItemView updateContentsAndWidth] + 36 (UIKit) [0x1f2a769]
1 -[UIStatusBarTimeItemView contentsImage] + 46 (UIKit) [0x1f485bb]
1 -[UIStatusBarItemView imageWithText:] + 268 (UIKit) [0x1f2ae12]
1 -[UIStatusBarForegroundStyleAttributes imageWithText:ofItemType:forWidth:lineBreakMode:letterSpacing:textAlignment:style:withLegibilityStyle:legibilityStrength:] + 304 (UIKit) [0x22a99be]
1 +[NSString stringWithFormat:] + 89 (Foundation) [0x159dc22]
1 -[NSPlaceholderString initWithFormat:locale:arguments:] + 159 (Foundation) [0x159a377]
1 _CFStringCreateWithFormatAndArgumentsAux2 + 270 (CoreFoundation) [0x3dc1abe]
1 CFRelease + 652 (CoreFoundation) [0x3ca51bc]
1 __CFStringDeallocate + 150 (CoreFoundation) [0x3ca7c76]
1 CFAllocatorDeallocate + 100 (CoreFoundation) [0x3c922d4]
1 __CFAllocatorSystemDeallocate + 24 (CoreFoundation) [0x3ca7cb8]
1 szone_free + 2001 (libsystem_malloc.dylib) [0x7d77b75]
1 <executing in user space>
Thread 0x18512b priority 31
1001 _dispatch_mgr_thread + 60 (libdispatch.dylib) [0x7b71114]
1001 kevent64 + 10 (libsystem_kernel.dylib) [0x7ea9992]
*1001 ??? (mach_kernel + 3960080) [0xffffff80005c6d10]
Thread 0x185134 priority 33
1001 thread_start + 34 (libsystem_pthread.dylib) [0x7eebcf2]
1001 _pthread_start + 130 (libsystem_pthread.dylib) [0x7ee6485]
1001 _pthread_body + 144 (libsystem_pthread.dylib) [0x7ee65fb]
1001 __NSThread__main__ + 1326 (Foundation) [0x15e9ab0]
1001 -[NSThread main] + 76 (Foundation) [0x15e9b57]
1001 +[NSURLConnection(Loader) _resourceLoadLoop:] + 469 (CFNetwork) [0x1080bb6]
1001 CFRunLoopRunInMode + 123 (CoreFoundation) [0x3cfcfdb]
1001 CFRunLoopRunSpecific + 443 (CoreFoundation) [0x3cfd1ab]
1001 __CFRunLoopRun + 1400 (CoreFoundation) [0x3cfd9e8]
1001 __CFRunLoopServiceMachPort + 214 (CoreFoundation) [0x3cfe606]
1001 mach_msg_trap + 10 (libsystem_kernel.dylib) [0x7ea3f7a]
*1001 ipc_mqueue_receive_continue + 0 (mach_kernel) [0xffffff80002167d0]
Thread 0x185136 priority 31
1001 thread_start + 34 (libsystem_pthread.dylib) [0x7eebcf2]
1001 _pthread_start + 130 (libsystem_pthread.dylib) [0x7ee6485]
1001 _pthread_body + 144 (libsystem_pthread.dylib) [0x7ee65fb]
1001 __select + 10 (libsystem_kernel.dylib) [0x7ea8ace]
*1001 ??? (mach_kernel + 4080224) [0xffffff80005e4260]
Thread 0x185625 priority 31
274 start_wqthread + 30 (libsystem_pthread.dylib) [0x7eebcce]
274 __workq_kernreturn + 10 (libsystem_kernel.dylib) [0x7ea9046]
*274 wq_unpark_continue + 0 (pthread) [0xffffff7f80c166ae]
*0xffffff7f80c13000 - 0xffffff7f80c1afff com.apple.kec.pthread 1.0 (1) <882075E6-12C4-3225-8750-928715183739> /System/Library/Extensions/pthread.kext/Contents/MacOS/pthread
*0xffffff8000200000 - 0xffffff80007a823a mach_kernel (2422.115.4) <9477416E-7BCA-3679-AF97-E1EAAD3DD5A0> /mach_kernel
进行一个专注于您的应用程序的转储，以查看您的主线程是否被阻止。
sudo spindump [name of your process]
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