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誰能幫我分析下面的崩潰日誌iPhone應用程序崩潰的Facebook SDK的
我試圖在Facebook上的應用進行集成，當我點擊應用程序Facebook的圖標，Facebook登錄頁面在應用程序中顯示爲Web視圖。但該應用程序崩潰。
Thread 5 name: Closure Thread
Thread 5 Crashed:
0 JavaScriptCore 0x2bf9afaa WTFCrash + 54
1 WebCore 0x36b218f8 WebCore::FloatingPointEnvironment::saveMainThreadEnvironment() + 28
2 WebCore 0x36767882 StartWebThread() + 458
3 libsystem_pthread.dylib 0x39416d5c __pthread_once_handler + 48
4 libsystem_platform.dylib 0x3940f864 _os_once + 40
5 libsystem_pthread.dylib 0x39414f16 pthread_once + 46
6 WebKitLegacy 0x3727b34c +[WebView(WebPrivate) enableWebThread] + 272
7 WebKitLegacy 0x3727a86a WebKitInitialize + 66
8 UIKit 0x2e349fd6 ___UIApplicationLoadWebKit_block_invoke + 150
9 libdispatch.dylib 0x392ac2cc _dispatch_client_callout + 20
10 libdispatch.dylib 0x392acf0e dispatch_once_f + 58
11 libobjc.A.dylib 0x38d424d4 _class_initialize + 532
12 libobjc.A.dylib 0x38d4805a lookUpImpOrForward + 250
13 libobjc.A.dylib 0x38d47f52 _class_lookupMethodAndLoadCache3 + 30
14 libobjc.A.dylib 0x38d4e1d6 _objc_msgSend_uncached + 22
15 MYAPP 0x000fc916 -[FBSDKWebDialogView initWithFrame:] (FBSDKWebDialogView.m:46)
16 MYAPP 0x000eb1a4 -[FBSDKWebDialog show] (FBSDKWebDialog.m:90)
17 MYAPP 0x000eafa6 +[FBSDKWebDialog showWithName:parameters:delegate:] (FBSDKWebDialog.m:52)
18 MYAPP 0x006dbe06 -[FBSDKLoginManager(WebDialog) performWebLogInWithParameters:] (FBSDKLoginManager.m:634)
19 MYAPP 0x006da52a -[FBSDKLoginManager logInWithBehavior:] (FBSDKLoginManager.m:304)
20 MYAPP 0x006da41c -[FBSDKLoginManager logInWithPermissions:handler:] (FBSDKLoginManager.m:262)
21 MYAPP 0x006d9576 -[FBSDKLoginManager logInWithReadPermissions:handler:] (FBSDKLoginManager.m:66)
22 MYAPP 0x00073c78 +[ViewController facebookLoginClicked] (ViewController.m:44)
23 MYAPP 0x000734a0 +[JSFacebookFFIAPI facebookLoginClicked:] (JSFacebookFFIAPI.m:43)
24 CoreFoundation 0x2aa94660 __invoking___ + 64
25 CoreFoundation 0x2a9bf488 -[NSInvocation invoke] + 296
26 MYAPP 0x002005c8 -[Runtime executeStaticFunction:withArguments:exception:] (Runtime.m:1906)
27 MYAPP 0x001ff11c staticDispatchFunction (Runtime.m:420)
28 MYAPP 0x005c415e long long JSC::APICallbackFunction::call<JSC::JSCallbackFunction>(JSC::ExecState*) + 422
29 MYAPP 0x00623dd4 JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 396
30 MYAPP 0x00622902 llint_slow_path_call + 118
31 MYAPP 0x006285fc JSC::LLInt::CLoop::execute(JSC::ExecState*, void*, bool) + 16212
32 MYAPP 0x00624228 callToJavaScript + 140
33 MYAPP 0x005bb13e JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*, JSC::Register*) + 38
34 MYAPP 0x005b99c2 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 534
35 MYAPP 0x00591564 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 44
36 MYAPP 0x005f23e0 JSObjectCallAsFunction + 428
37 MYAPP 0x001ffae0 -[Runtime executeJSFunction:thisObject:withArguments:] (Runtime.m:1773)
38 MYAPP 0x00207406 -[JSFunctionExecuter execute:] (JSFunctionExecuter.m:55)
39 MYAPP 0x00206f6c -[FunctionExecuter execute:] (FunctionExecuter.m:76)
40 MYAPP 0x00150df0 doExecuteClosure (ClosureExecuter.m:43)
41 MYAPP 0x001522d6 +[ClosureExecuter executeClosure:] (ClosureExecuter.m:262)
42 Foundation 0x2b7ce5ca __NSThreadPerformPerform + 382
43 CoreFoundation 0x2aa55fac __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
44 CoreFoundation 0x2aa553ba __CFRunLoopDoSources0 + 214
45 CoreFoundation 0x2aa53a20 __CFRunLoopRun + 768
46 CoreFoundation 0x2a9a01fc CFRunLoopRunSpecific + 472
47 CoreFoundation 0x2a9a000e CFRunLoopRunInMode + 102
48 Foundation 0x2b709138 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 260
49 MYAPP 0x000ff454 -[VMThread main] (VMAppDelegate.m:271)
50 Foundation 0x2b7ce3b6 __NSThread__main__ + 1114
51 libsystem_pthread.dylib 0x39415e20 _pthread_body + 136
52 libsystem_pthread.dylib 0x39415d92 _pthread_start + 114
53 libsystem_pthread.dylib 0x39413b1c thread_start + 4