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我使用Xcode 5來創建我的應用程序。當我使用IOS 6.1在模擬器上運行它時，一切正常，但是當我在IOS 7上運行應用程序時，它會崩潰！下面是我從網頁視圖獲取崩潰日誌：UIWebview在IOS 7上崩潰但在IOS上不崩潰
`Incident Identifier: 01BCFB4C-E85B-488D-9855-4188D27566B1
CrashReporter Key: cc047dce10a1cd20b4718dbf73ddc413162841fe
Hardware Model: iPhone5,1
Process: Widgets iphone [420]
Path: /var/mobile/Applications/0D552E90-FF2C-4561-B012-0901359ED7A0/Widgets iphone.app/Widgets iphone
Identifier: jeardev.Widgets-iphone
Version: 1.1 (1.1)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2013-08-27 20:49:46.578 -0500
OS Version: iOS 7.0 (11A4449d)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x000000f0
Triggered by Thread: 7
Thread 0:
0 libsystem_kernel.dylib 0x382e3a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x382e387c mach_msg + 36
2 CoreFoundation 0x2dccc55c __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dccacc2 __CFRunLoopRun + 858
4 CoreFoundation 0x2dc3553c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dc3531e CFRunLoopRunInMode + 102
6 GraphicsServices 0x326c933e GSEventRunModal + 134
7 UIKit 0x3024e7b0 UIApplicationMain + 1132
8 Widgets iphone 0x00071fa2 main (main.m:16)
9 libdyld.dylib 0x3823fab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x382f6c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3835ae06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3835acc0 start_wqthread + 4
Thread 2:
0 libsystem_kernel.dylib 0x382f6c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3835ae06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3835acc0 start_wqthread + 4
Thread 3 name: gputools.smt_poll.0x16580fd0
Thread 3:
0 libsystem_kernel.dylib 0x382f6550 __semwait_signal + 24
1 libsystem_c.dylib 0x382674e8 nanosleep + 168
2 libsystem_c.dylib 0x38267438 usleep + 48
3 GPUToolsCore 0x0062b0bc smt_poll_thread_entry(void*) + 120
4 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
5 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
6 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 4:
0 libsystem_kernel.dylib 0x382e3838 kevent64 + 24
1 libdispatch.dylib 0x382320d0 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x3822c63e _dispatch_mgr_thread + 34
Thread 5:
0 libsystem_kernel.dylib 0x382f6c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3835ae06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3835acc0 start_wqthread + 4
Thread 6:
0 libsystem_kernel.dylib 0x382f6c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3835ae06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3835acc0 start_wqthread + 4
Thread 7 name: WebThread
Thread 7 Crashed:
0 WebCore 0x35ac9de8 WebCore::ApplicationCacheGroup::selectCache(WebCore::Frame*, WebCore::KURL const&) + 544
1 WebCore 0x358d12b6 WebCore::HTMLHtmlElement::insertedByParser() + 90
2 WebCore 0x358c9936 WebCore::HTMLConstructionSite::insertHTMLHtmlStartTagBeforeHTML(WebCore::AtomicHTMLToken*) + 318
3 WebCore 0x3589f1b4 WebCore::HTMLTreeBuilder::processStartTag(WebCore::AtomicHTMLToken*) + 2472
4 WebCore 0x3589e76e WebCore::HTMLTreeBuilder::processToken(WebCore::AtomicHTMLToken*) + 86
5 WebCore 0x3589e552 WebCore::HTMLTreeBuilder::constructTree(WebCore::AtomicHTMLToken*) + 30
6 WebCore 0x3589e038 WebCore::HTMLDocumentParser::constructTreeFromHTMLToken(WebCore::HTMLToken&) + 96
7 WebCore 0x358910f0 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 248
8 WebCore 0x3590234e WebCore::HTMLDocumentParser::append(WTF::PassRefPtr<WTF::StringImpl>) + 290
9 WebCore 0x35901872 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter*, char const*, unsigned long) + 70
10 WebCore 0x358bdae4 WebCore::DocumentLoader::commitData(char const*, unsigned long) + 32
11 WebKit 0x362c366e -[WebHTMLRepresentation receivedData:withDataSource:] + 178
12 WebKit 0x362c3508 -[WebDataSource(WebInternal) _receivedData:] + 132
13 WebKit 0x362c3464 WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) + 96
14 WebCore 0x358f9240 WebCore::DocumentLoader::commitLoad(char const*, int) + 96
15 WebCore 0x358f9198 WebCore::DocumentLoader::dataReceived(WebCore::CachedResource*, char const*, int) + 492
16 WebCore 0x358f79b0 WebCore::DocumentLoader::continueAfterContentPolicy(WebCore::PolicyAction) + 760
17 WebCore 0x358f6fde WebCore::DocumentLoader::responseReceived(WebCore::CachedResource*, WebCore::ResourceResponse const&) + 650
18 WebCore 0x35b73a1a WebCore::DocumentLoader::handleSubstituteDataLoadNow(WebCore::Timer<WebCore::DocumentLoader>*) + 322
19 WebCore 0x3581d2d4 WebCore::ThreadTimers::sharedTimerFiredInternal() + 132
20 WebCore 0x3581d226 WebCore::timerFired(__CFRunLoopTimer*, void*) + 22
21 CoreFoundation 0x2dccce84 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
22 CoreFoundation 0x2dccca9e __CFRunLoopDoTimer + 790
23 CoreFoundation 0x2dccae26 __CFRunLoopRun + 1214
24 CoreFoundation 0x2dc3553c CFRunLoopRunSpecific + 520
25 CoreFoundation 0x2dc3531e CFRunLoopRunInMode + 102
26 WebCore 0x358abf68 RunWebThread(void*) + 416
27 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
28 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
29 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 8 name: com.apple.NSURLConnectionLoader
Thread 8:
0 libsystem_kernel.dylib 0x382e3a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x382e387c mach_msg + 36
2 CoreFoundation 0x2dccc55c __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dccac7c __CFRunLoopRun + 788
4 CoreFoundation 0x2dc3553c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dc3531e CFRunLoopRunInMode + 102
6 Foundation 0x2e6519bc +[NSURLConnection(Loader) _resourceLoadLoop:] + 316
7 Foundation 0x2e6c72b2 __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
9 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
10 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 9:
0 libsystem_kernel.dylib 0x382e3a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x382e387c mach_msg + 36
2 CoreFoundation 0x2dccc55c __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dccac7c __CFRunLoopRun + 788
4 CoreFoundation 0x2dc3553c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dc3531e CFRunLoopRunInMode + 102
6 libAVFAudio.dylib 0x2cc125ae GenericRunLoopThread::Entry(void*) + 126
7 libAVFAudio.dylib 0x2cc05f44 CAPThread::Entry(CAPThread*) + 176
8 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
9 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
10 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 10 name: com.apple.CFSocket.private
Thread 10:
0 libsystem_kernel.dylib 0x382f6440 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x2dcd045a __CFSocketManager + 478
2 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
3 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
4 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 11 name: JavaScriptCore::BlockFree
Thread 11:
0 libsystem_kernel.dylib 0x382f5f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x3835c262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3835d03c pthread_cond_wait + 36
3 JavaScriptCore 0x2ec3a408 JSC::BlockAllocator::blockFreeingThreadMain() + 204
4 JavaScriptCore 0x2ec37a70 WTF::wtfThreadEntryPoint(void*) + 12
5 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
6 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
7 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 12 name: JavaScriptCore::Marking
Thread 12:
0 libsystem_kernel.dylib 0x382f5f38 __psynch_cvwait + 24
1 libsystem_pthread.dylib 0x3835c262 _pthread_cond_wait + 538
2 libsystem_pthread.dylib 0x3835d03c pthread_cond_wait + 36
3 JavaScriptCore 0x2edd8af2 JSC::GCThread::waitForNextPhase() + 74
4 JavaScriptCore 0x2edd8b4c JSC::GCThread::gcThreadMain() + 48
5 JavaScriptCore 0x2ec37a70 WTF::wtfThreadEntryPoint(void*) + 12
6 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
7 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
8 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 13 name: WebCore: CFNetwork Loader
Thread 13:
0 libsystem_kernel.dylib 0x382e3a84 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x382e387c mach_msg + 36
2 CoreFoundation 0x2dccc55c __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2dccac7c __CFRunLoopRun + 788
4 CoreFoundation 0x2dc3553c CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2dc3531e CFRunLoopRunInMode + 102
6 WebCore 0x358f512a WebCore::runLoaderThread(void*) + 250
7 JavaScriptCore 0x2ec37a70 WTF::wtfThreadEntryPoint(void*) + 12
8 libsystem_pthread.dylib 0x3835cc5a _pthread_body + 138
9 libsystem_pthread.dylib 0x3835cbca _pthread_start + 98
10 libsystem_pthread.dylib 0x3835accc thread_start + 4
Thread 14:
0 libsystem_kernel.dylib 0x382f6c7c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x3835ae06 _pthread_wqthread + 306
2 libsystem_pthread.dylib 0x3835acc0 start_wqthread + 4
Thread 7 crashed with ARM Thread State (32-bit):
r0: 0x00000000 r1: 0x00000008 r2: 0x9b81ac40 r3: 0x00000021
r4: 0x00000000 r5: 0x0367daf0 r6: 0x04cf6750 r7: 0x031b4818
r8: 0x0309f040 r9: 0x00000035 r10: 0x0309f000 r11: 0x04b2d000
ip: 0x39d5d5cc sp: 0x031b477c lr: 0x35ac9de5 pc: 0x35ac9de8
cpsr: 0x00000030
` 它特別崩潰「主題5 Webthread」有時候螺紋8 任何反饋表示讚賞:)
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