Incident Identifier: 0d5ba299-1799-48b7-8658-d2d307b680ba CrashReporter Key: b42f6447-f602-4a22-bbad-7a54d7bfeaee Hardware Model: iPhone7,2 Process: iSurvey.iOS [1925] Path: /var/containers/Bundle/Application/6E326296-B0F5-4F13-8270-CA75368369C2/iSurvey.iOS.app/iSurvey.iOS Identifier: com.survey.isurvey Version: 4.25.12 (4.25.12) Code Type: arm64 Parent Process: ??? [1] Date/Time: 2018-08-27T18:18:45.999Z Launch Time: 2018-08-27T18:07:32Z OS Version: iPhone OS 10.3.1 (14E304) Report Version: 104 Exception Type: SIGABRT Exception Codes: #0 at 0x18b13d014 Crashed Thread: 0 Xamarin Exception Stack: System.ArgumentNullException: Value cannot be null. Parameter name: fromPosition at UIKit.UITextField.GetPosition (UIKit.UITextPosition fromPosition, System.nint offset) <0x102756280 + 0x000dc> in <0b60c1467e7449608ac42f9c7bbfdd05#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.Platform.iOS.EntryRenderer.UpdateCursorSelection () <0x1003c47f0 + 0x000c7> in :0 at Xamarin.Forms.Platform.iOS.EntryRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) <0x1003c2a20 + 0x005fb> in :0 at iSurvey.iOS.CustomEntryRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) <0x10013dd40 + 0x00047> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) <0x1003b0f70 + 0x004c3> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) <0x1003b0c60 + 0x0003f> in :0 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) <0x1003a9790 + 0x0007b> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) <0x1003af870 + 0x000af> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () <0x1003af4e0 + 0x000ab> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) <0x1003b0f70 + 0x003c3> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) <0x1003b0c60 + 0x0003f> in :0 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) <0x1003a9790 + 0x0007b> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) <0x1003af870 + 0x000af> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () <0x1003af4e0 + 0x000ab> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) <0x1003b0f70 + 0x003c3> in :0 at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) <0x1003b0c60 + 0x0003f> in :0 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) <0x1003a9790 + 0x0007b> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) <0x1003af870 + 0x000af> in :0 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (System.Object sender, Xamarin.Forms.ElementEventArgs e) <0x1003afdd0 + 0x00077> in :0 at Xamarin.Forms.Element.OnChildAdded (Xamarin.Forms.Element child) <0x1002187d0 + 0x000a7> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.VisualElement.OnChildAdded (Xamarin.Forms.Element child) <0x10029b120 + 0x00023> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.Layout.OnInternalAdded (Xamarin.Forms.View view) <0x100242b40 + 0x00093> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.Layout.InternalChildrenOnCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) <0x100242720 + 0x002ef> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e) <0x1022bac30 + 0x00067> in :0 at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) <0x1022bae60 + 0x0005b> in :0 at System.Collections.ObjectModel.ObservableCollection`1[T].InsertItem (System.Int32 index, T item) <0x1022ba830 + 0x00067> in :0 at System.Collections.ObjectModel.Collection`1[T].Add (T item) <0x101ecb470 + 0x000ab> in :0 at Xamarin.Forms.TemplateUtilities.OnContentChanged (Xamarin.Forms.BindableObject bindable, System.Object oldValue, System.Object newValue) <0x10028a180 + 0x0022b> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty property, Xamarin.Forms.BindableObject+BindablePropertyContext context, System.Object value, System.Boolean currentlyApplying, Xamarin.Forms.Internals.SetValueFlags attributes, System.Boolean silent) <0x1001e3720 + 0x002cf> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty property, System.Object value, Xamarin.Forms.Internals.SetValueFlags attributes, Xamarin.Forms.BindableObject+SetValuePrivateFlags privateAttributes) <0x1001e26d0 + 0x0052b> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.BindableObject.SetValue (Xamarin.Forms.BindableProperty property, System.Object value, System.Boolean fromStyle, System.Boolean checkAccess) <0x1001e3610 + 0x0009b> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.BindableObject.SetValue (Xamarin.Forms.BindableProperty property, System.Object value) <0x1001e0920 + 0x0002b> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at Xamarin.Forms.ContentView.set_Content (Xamarin.Forms.View value) <0x10020d3b0 + 0x0002b> in <2c09f7e4eb264c7e88ccd0162b902b75#163bba3ec5f9f788fb591726c551f352>:0 at iSurvey.LandingPage+d__24.MoveNext () <0x100663300 + 0x00107> in :0 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x101eadb60 + 0x00028> in :0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x101eb5670 + 0x000d3> in :0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x101eb55c0 + 0x0008b> in :0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x101eb5550 + 0x00053> in :0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0x101eb5520 + 0x00017> in :0 at iSurvey.LandingPage+d__20.MoveNext () <0x100662c10 + 0x001ff> in :0 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x101eadb60 + 0x00028> in :0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x101eb5670 + 0x000d3> in :0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x101eb55c0 + 0x0008b> in :0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x101eb5550 + 0x00053> in :0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0x101eb5520 + 0x00017> in :0 at iSurvey.LandingPage+<>c__DisplayClass19_0+<<-ctor>b__0>d.MoveNext () <0x1006621c0 + 0x0016b> in :0 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x101eadb60 + 0x00028> in :0 at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__6_0 (System.Object state) <0x101eb4f20 + 0x00053> in :0 at UIKit.UIKitSynchronizationContext+<>c__DisplayClass1_0.b__0 () <0x10274d9f0 + 0x00027> in <0b60c1467e7449608ac42f9c7bbfdd05#163bba3ec5f9f788fb591726c551f352>:0 at Foundation.NSAsyncActionDispatcher.Apply () <0x10278e070 + 0x00023> in <0b60c1467e7449608ac42f9c7bbfdd05#163bba3ec5f9f788fb591726c551f352>:0 at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr) at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) <0x102741e00 + 0x0002b> in <0b60c1467e7449608ac42f9c7bbfdd05#163bba3ec5f9f788fb591726c551f352>:0 at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) <0x102741d40 + 0x000ab> in <0b60c1467e7449608ac42f9c7bbfdd05#163bba3ec5f9f788fb591726c551f352>:0 at iSurvey.iOS.Application.Main (System.String[] args) <0x100121770 + 0x00023> in :0 Thread 0 Crashed: 0 libsystem_kernel.dylib 0x000000018b13d014 __pthread_kill + 8 1 libsystem_c.dylib 0x000000018b0b19c4 abort + 136 2 Xamarin 0x0000000101c939fc 0x101c84000 + 63996 3 Mono 0x0000000101a83ef0 0x1019e8000 + 638704 4 Mono 0x0000000101a39644 0x1019e8000 + 333380 5 Mono 0x0000000101a3838c 0x1019e8000 + 328588 6 Mono 0x0000000101a2ef98 0x1019e8000 + 290712 7 Xamarin.Sdk 0x0000000101ff5df8 0x101ce4000 + 3218936 8 Xamarin.Sdk 0x0000000101eadb8c 0x101ce4000 + 1874828 9 Xamarin.Sdk 0x0000000101eb4f74 0x101ce4000 + 1904500 10 Xamarin.Sdk 0x000000010274da18 0x101ce4000 + 10918424 11 Xamarin.Sdk 0x000000010278e094 0x101ce4000 + 11182228 12 Xamarin.Sdk 0x0000000101fc1ba8 0x101ce4000 + 3005352 13 Mono 0x0000000101a49778 0x1019e8000 + 399224 14 Mono 0x0000000101ac88a4 0x1019e8000 + 919716 15 Mono 0x0000000101acc0c0 0x1019e8000 + 934080 16 iSurvey.iOS 0x00000001000ea628 native_to_managed_trampoline_4(objc_object*, objc_selector*, _MonoMethod**, unsigned int) (registrar.m:154) 17 iSurvey.iOS 0x00000001000eb360 -[__MonoMac_NSAsyncActionDispatcher xamarinApplySelector] (registrar.m:11411) 18 Foundation 0x000000018cc364bc __NSThreadPerformPerform + 336 19 CoreFoundation 0x000000018c0f1424 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 20 20 CoreFoundation 0x000000018c0f0d94 __CFRunLoopDoSources0 + 536 21 CoreFoundation 0x000000018c0ee9a0 __CFRunLoopRun + 740 22 CoreFoundation 0x000000018c01ed94 CFRunLoopRunSpecific + 420 23 GraphicsServices 0x000000018da88074 GSEventRunModal + 96 24 UIKit 0x00000001922d7130 UIApplicationMain + 204 25 Xamarin.Sdk 0x00000001027ecab0 0x101ce4000 + 11569840 26 Xamarin.Sdk 0x0000000102741e2c 0x101ce4000 + 10870316 27 Xamarin.Sdk 0x0000000102741dec 0x101ce4000 + 10870252 28 iSurvey.iOS 0x0000000100121794 iSurvey_iOS_Application_Main_string__ (:1) 29 Xamarin.Sdk 0x0000000101fc1ba8 0x101ce4000 + 3005352 30 Mono 0x0000000101a49778 0x1019e8000 + 399224 31 Mono 0x0000000101ac88a4 0x1019e8000 + 919716 32 Mono 0x0000000101ace61c 0x1019e8000 + 943644 33 Mono 0x0000000101a2b608 0x1019e8000 + 275976 34 Xamarin 0x0000000101c9ad0c 0x101c84000 + 93452 35 iSurvey.iOS 0x0000000100121314 main (main.m:206) 36 libdyld.dylib 0x000000018b02d59c start + 0 Thread 1: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 libc++.1.dylib 0x000000018ab2dac8 std::__1::condition_variable::wait(std::__1::unique_lock&) + 52 2 JavaScriptCore 0x00000001909cfc98 void std::__1::condition_variable_any::wait >(std::__1::unique_lock&) + 108 3 JavaScriptCore 0x00000001909cfc0c bmalloc::AsyncTask::threadRunLoop() + 164 4 JavaScriptCore 0x00000001909cfaec bmalloc::AsyncTask::threadEntryPoint(bmalloc::AsyncTask*) + 32 5 JavaScriptCore 0x00000001909cfd9c void* std::__1::__thread_proxy*), bmalloc::AsyncTask*> >(void*) + 88 6 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 7 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 8 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 2: 0 libsystem_kernel.dylib 0x000000018b11f224 mach_msg_trap + 8 1 CoreFoundation 0x000000018c0f0e88 __CFRunLoopServiceMachPort + 188 2 CoreFoundation 0x000000018c0eeadc __CFRunLoopRun + 1056 3 CoreFoundation 0x000000018c01ed94 CFRunLoopRunSpecific + 420 4 WebCore 0x0000000190ceeb5c RunWebThread(void*) + 452 5 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 6 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 7 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 3: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b5a438 0x1019e8000 + 1516600 2 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 3 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 4 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 4: 0 libsystem_kernel.dylib 0x000000018b11f260 semaphore_wait_trap + 8 1 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 2 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 3 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 4 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 5: 0 libsystem_kernel.dylib 0x000000018b11f224 mach_msg_trap + 8 1 CoreFoundation 0x000000018c0f0e88 __CFRunLoopServiceMachPort + 188 2 CoreFoundation 0x000000018c0eeadc __CFRunLoopRun + 1056 3 CoreFoundation 0x000000018c01ed94 CFRunLoopRunSpecific + 420 4 Foundation 0x000000018cb38d64 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 300 5 Foundation 0x000000018cb59b34 -[NSRunLoop(NSRunLoop) runUntilDate:] + 92 6 UIKit 0x0000000192c615f8 -[UIEventFetcher threadMain] + 132 7 Foundation 0x000000018cc362c8 __NSThread__start__ + 992 8 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 9 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 10 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 6: 0 libsystem_kernel.dylib 0x000000018b11f224 mach_msg_trap + 8 1 CoreFoundation 0x000000018c0f0e88 __CFRunLoopServiceMachPort + 188 2 CoreFoundation 0x000000018c0eeadc __CFRunLoopRun + 1056 3 CoreFoundation 0x000000018c01ed94 CFRunLoopRunSpecific + 420 4 Foundation 0x000000018cb38d64 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 300 5 Foundation 0x000000018cb8d6b4 -[NSRunLoop(NSRunLoop) run] + 84 6 iSurvey.iOS 0x0000000101086a98 +[GAI threadMain:] + 60 7 Foundation 0x000000018cc362c8 __NSThread__start__ + 992 8 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 9 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 10 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 7: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101b0c8c4 0x1019e8000 + 1198276 3 Mono 0x0000000101b0c7ac 0x1019e8000 + 1197996 4 Mono 0x0000000101b0c9c4 0x1019e8000 + 1198532 5 Mono 0x0000000101afd5dc 0x1019e8000 + 1136092 6 Xamarin.Sdk 0x0000000101e700a8 0x101ce4000 + 1622184 7 Xamarin.Sdk 0x0000000101e6ffa8 0x101ce4000 + 1621928 8 Xamarin.Sdk 0x0000000101e6fdbc 0x101ce4000 + 1621436 9 Xamarin.Sdk 0x0000000101e6fd68 0x101ce4000 + 1621352 10 Xamarin.Sdk 0x0000000101e6fb7c 0x101ce4000 + 1620860 11 Xamarin.Sdk 0x0000000101e6fcd8 0x101ce4000 + 1621208 12 Xamarin.Sdk 0x0000000101e73464 0x101ce4000 + 1635428 13 Xamarin.Sdk 0x0000000101e69fcc 0x101ce4000 + 1597388 14 Xamarin.Sdk 0x0000000101e67bf4 0x101ce4000 + 1588212 15 Xamarin.Sdk 0x0000000101e67a4c 0x101ce4000 + 1587788 16 Xamarin.Sdk 0x0000000101e679cc 0x101ce4000 + 1587660 17 Xamarin.Sdk 0x0000000101e6a134 0x101ce4000 + 1597748 18 Xamarin.Sdk 0x0000000101fc1ba8 0x101ce4000 + 3005352 19 Mono 0x0000000101a49778 0x1019e8000 + 399224 20 Mono 0x0000000101ac88a4 0x1019e8000 + 919716 21 Mono 0x0000000101b01f14 0x1019e8000 + 1154836 22 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 23 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 24 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 8: 0 libsystem_kernel.dylib 0x000000018b13d23c __select + 8 1 Mono 0x0000000101af53c0 0x1019e8000 + 1102784 2 Mono 0x0000000101af4dd8 0x1019e8000 + 1101272 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 9: 0 libsystem_kernel.dylib 0x000000018b11f224 mach_msg_trap + 8 1 CoreFoundation 0x000000018c0f0e88 __CFRunLoopServiceMachPort + 188 2 CoreFoundation 0x000000018c0eeadc __CFRunLoopRun + 1056 3 CoreFoundation 0x000000018c01ed94 CFRunLoopRunSpecific + 420 4 CFNetwork 0x000000018c82aca4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 400 5 Foundation 0x000000018cc362c8 __NSThread__start__ + 992 6 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 7 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 8 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 10: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66aec 0x1019e8000 + 1567468 2 Mono 0x0000000101b0c8c4 0x1019e8000 + 1198276 3 Mono 0x0000000101b0c7ac 0x1019e8000 + 1197996 4 Mono 0x0000000101abbfdc 0x1019e8000 + 868316 5 Xamarin.Sdk 0x0000000101e69668 0x101ce4000 + 1594984 6 Xamarin.Sdk 0x0000000101e69710 0x101ce4000 + 1595152 7 Xamarin.Sdk 0x0000000101e6923c 0x101ce4000 + 1593916 8 Xamarin.Sdk 0x0000000101e69290 0x101ce4000 + 1594000 9 Xamarin.Sdk 0x0000000101e63fb8 0x101ce4000 + 1572792 10 Xamarin.Sdk 0x0000000101e63d34 0x101ce4000 + 1572148 11 Xamarin.Sdk 0x00000001022bbda0 0x101ce4000 + 6127008 12 Xamarin.Sdk 0x00000001022bbba8 0x101ce4000 + 6126504 13 Xamarin.Sdk 0x00000001022bbadc 0x101ce4000 + 6126300 14 iSurvey.iOS 0x00000001003ec004 Xamarin_Forms_Platform_iOS_CADisplayLinkTicker_StartThread (:1) 15 Xamarin.Sdk 0x0000000101e69fcc 0x101ce4000 + 1597388 16 Xamarin.Sdk 0x0000000101e67bf4 0x101ce4000 + 1588212 17 Xamarin.Sdk 0x0000000101e67a4c 0x101ce4000 + 1587788 18 Xamarin.Sdk 0x0000000101e679cc 0x101ce4000 + 1587660 19 Xamarin.Sdk 0x0000000101e6a134 0x101ce4000 + 1597748 20 Xamarin.Sdk 0x0000000101fc1ba8 0x101ce4000 + 3005352 21 Mono 0x0000000101a49778 0x1019e8000 + 399224 22 Mono 0x0000000101ac88a4 0x1019e8000 + 919716 23 Mono 0x0000000101b01f14 0x1019e8000 + 1154836 24 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 25 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 26 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 11: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 JavaScriptCore 0x0000000190023374 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 76 2 JavaScriptCore 0x00000001909b68dc WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda const&, WTF::ScopedLambda const&, WTF::TimeWithDynamicClockType const&) + 2252 3 JavaScriptCore 0x000000019062ea38 JSC::Heap::stopTheMutator() + 268 4 JavaScriptCore 0x000000019062c480 JSC::Heap::stopTheWorld() + 156 5 JavaScriptCore 0x000000019062dd10 JSC::Heap::collectInThread() + 188 6 JavaScriptCore 0x0000000190630830 JSC::Heap::Thread::work() + 12 7 JavaScriptCore 0x00000001909a6668 std::__1::__function::__func const&)::$_0, std::__1::allocator const&)::$_0>, void ()>::operator()() + 348 8 JavaScriptCore 0x000000019001f948 WTF::threadEntryPoint(void*) + 208 9 JavaScriptCore 0x000000019001f858 WTF::wtfThreadEntryPoint(void*) + 20 10 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 11 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 12 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 12: 0 libsystem_kernel.dylib 0x000000018b13da88 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x000000018b202d7c start_wqthread + 0 Thread 13: 0 libsystem_kernel.dylib 0x000000018b13da88 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x000000018b202d7c start_wqthread + 0 Thread 14: 0 libsystem_kernel.dylib 0x000000018b13da88 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x000000018b202d7c start_wqthread + 0 Thread 15: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 16: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 17: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 18: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 19: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 20: 0 libsystem_kernel.dylib 0x000000018b13da88 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x000000018b202d7c start_wqthread + 0 Thread 21: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101b6e070 0x1019e8000 + 1597552 3 Mono 0x0000000101af7ed0 0x1019e8000 + 1113808 4 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 5 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 6 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 7 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 22: 0 libsystem_kernel.dylib 0x000000018b13da88 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x000000018b202d7c start_wqthread + 0 Thread 23: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 24: 0 libsystem_kernel.dylib 0x000000018b13ce1c __psynch_cvwait + 8 1 Mono 0x0000000101b66ac4 0x1019e8000 + 1567428 2 Mono 0x0000000101af866c 0x1019e8000 + 1115756 3 Mono 0x0000000101b01ef0 0x1019e8000 + 1154800 4 libsystem_pthread.dylib 0x000000018b20575c _pthread_body + 236 5 libsystem_pthread.dylib 0x000000018b20566c _pthread_start + 280 6 libsystem_pthread.dylib 0x000000018b202d84 thread_start + 0 Thread 0 crashed with arm64 Thread State: x21: 0x000000016fd4d1b0 x2: 0x0000000000000000 x16: 0x0000000000000148 x3: 0x0000000000000000 x22: 0x0000000000000001 x4: 0x000000016fd4bd04 x17: 0x0000000000000000 cpsr: 0x0000000000000000 x5: 0x000000016fd4c0b0 x23: 0x0000000000000000 x6: 0x0000000000000031 x18: 0x0000000000000000 x10: 0x0000000000003dd5 lr: 0x000000018b207334 x7: 0xffffffffffffffec x24: 0x0000000102f38f90 x11: 0x00000001b4b7ad63 x8: 0x0000000008000000 x19: 0x0000000000000006 x25: 0x0000000102c04150 x9: 0x0000000004000000 x12: 0x00000001b4b7ad63 fp: 0x000000016fd4c3c0 x26: 0x00000001108bf610 x13: 0x0000000000000018 pc: 0x000000018b13d014 x27: 0x0000000103832be8 x14: 0x0000000000000001 x20: 0x00000001b23f4b40 x0: 0x0000000000000000 sp: 0x000000016fd4c3a0 x28: 0x0000000101fc1ba7 x15: 0x0000000000000881 x1: 0x0000000000000000 Binary Images: 0x00000001000b0000 - 0x0000000101493fff +iSurvey.iOS arm64 /var/containers/Bundle/Application/6E326296-B0F5-4F13-8270-CA75368369C2/iSurvey.iOS.app/iSurvey.iOS 0x00000001019e8000 - 0x0000000101c07fff +Mono arm64 <133cbcd5-3395-3a4f-a6b4-83aa79e745c5> /private/var/containers/Bundle/Application/6E326296-B0F5-4F13-8270-CA75368369C2/iSurvey.iOS.app/Frameworks/Mono.framework/Mono 0x0000000101c84000 - 0x0000000101c9ffff +Xamarin arm64 /private/var/containers/Bundle/Application/6E326296-B0F5-4F13-8270-CA75368369C2/iSurvey.iOS.app/Frameworks/Xamarin.framework/Xamarin 0x0000000101ce4000 - 0x0000000102a47fff +Xamarin.Sdk arm64 <8fe58ddf-cd9d-3f83-88e1-76063145f66d> /private/var/containers/Bundle/Application/6E326296-B0F5-4F13-8270-CA75368369C2/iSurvey.iOS.app/Frameworks/Xamarin.Sdk.framework/Xamarin.Sdk 0x000000018ab26000 - 0x000000018ab7bfff libc++.1.dylib arm64 <4d91c4d8-8583-39c7-ae2b-3716d1f5e0fc> /usr/lib/libc++.1.dylib 0x000000018b029000 - 0x000000018b02dfff libdyld.dylib arm64 <649eb4fd-79bf-3086-9584-b3ec86b6bcbc> /usr/lib/system/libdyld.dylib 0x000000018b050000 - 0x000000018b0ccfff libsystem_c.dylib arm64 /usr/lib/system/libsystem_c.dylib 0x000000018b11e000 - 0x000000018b142fff libsystem_kernel.dylib arm64 <2ccf4db3-3c32-3a68-b059-42b8375b90c2> /usr/lib/system/libsystem_kernel.dylib 0x000000018b202000 - 0x000000018b20bfff libsystem_pthread.dylib arm64 /usr/lib/system/libsystem_pthread.dylib 0x000000018c016000 - 0x000000018c397fff CoreFoundation arm64 <106dcfda-e2ac-31b9-af16-e54e3fdb49be> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 0x000000018c749000 - 0x000000018cabdfff CFNetwork arm64 <7074b3e7-19d2-3257-b4cd-53899121f5c8> /System/Library/Frameworks/CFNetwork.framework/CFNetwork 0x000000018cb2c000 - 0x000000018cdfbfff Foundation arm64 <73ff2b76-d90f-3c90-b010-8f6e36e3b71f> /System/Library/Frameworks/Foundation.framework/Foundation 0x000000018da7c000 - 0x000000018da90fff GraphicsServices arm64 <93b59704-4b52-3474-9061-bb64ddf8adae> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices 0x0000000190016000 - 0x0000000190a58fff JavaScriptCore arm64 <5bb5b158-a758-3ee8-b325-faada574ffa0> /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore 0x0000000190cac000 - 0x0000000191ea0fff WebCore arm64 /System/Library/PrivateFrameworks/WebCore.framework/WebCore 0x0000000192262000 - 0x0000000193009fff UIKit arm64 /System/Library/Frameworks/UIKit.framework/UIKit