从苹果商店里下载后我的应用程序崩溃 [英] My app crash after downloading it from appstore

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本文介绍了从苹果商店里下载后我的应用程序崩溃的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我只是做了我的应用程序的应用程序商店的更新和审批后,我下载了它,它坠毁。我在所有的测试中没有看到任何问题。

一件事,可能是一个问题是,我从下降4.2批准的IOS版本为4.0,或许这是问题,但它并不能解释为什么我没有我的设备上的任何问题。

任何人都可以帮助我的一些想法,这样我就可以找到问题所在,因为我甚至不知道从哪里开始寻找除了IOS水平?

下面是崩溃日志:

 事件标识符:B95E9513-DBCD-40F1-A24C-7116285D66F8
CrashReporter始终键:f7781ad5687b1a1cbfdcc3c014ba4524bdb0e48e
硬件型号:iPhone3,1
工艺:FamiljeQuiz-Frågesport[2300]
路径:在/ var /移动/应用/ 68D41895-E120-4C76-9952- 3F7CB6E1EBB2 / FamiljeQuiz-Frågesport.app/ FamiljeQuiz-Frågesport
标识符:FamiljeQuiz-Frågesport
版本:??? (???)
code类型:ARM(母语)
父进程:launchd的[1]日期/时间:2011-10-20 07:36:58.974 +0200
OS版本:iPhone OS 4.3.5(8L1)
报告版本:104异常类型:EXC_CRASH(SIGABRT)
异常codeS:00000000,00000000
坠毁主题:0主题0名:调度队列:com.apple.main线程
螺纹0坠毁:
0 libsystem_kernel.dylib 0x33df7a1c __pthread_kill + 8
1 libsystem_c.dylib 0x33e313b4 pthread_kill + 52
2 libsystem_c.dylib 0x33e29bf8中止+ 72
3 ++的libstdc。6.dylib 0x32eeaa64 __gnu_cxx :: __ verbose_terminate_handler()+ 376
4 libobjc.A.dylib 0x333aa06c _objc_terminate + 104
5 ++的libstdc。6.dylib 0x32ee8e36 __cxxabiv1 :: __终止(无效(*)())+ 46
6 ++的libstdc。6.dylib 0x32ee8e8a的std ::终止()+ 10
7的libstdc ++。6.dylib 0x32ee8f5a __cxa_throw + 78
8 libobjc.A.dylib 0x333a8c84 objc_exception_throw + 64
9的CoreFoundation 0x3614f48a + NSException提高:格式:参数:] + 62
10的CoreFoundation 0x3614f4c4 + NSException提高:格式:] + 28
11基金0x34514e28 - [NSURL(NSURL)initFileURLWithPath:isDirectory:] + 68
12基金0x345279c4 + [NSURL(NSURL)fileURLWithPath:isDirectory:] + 28
13 FamiljeQuiz-Frågesport0x0000e808为0x1000 + 55304
14 FamiljeQuiz-Frågesport0x0000d6c4为0x1000 + 50884
15的CoreFoundation 0x360bf56a - [NSObject的(NSObject的)performSelector:withObject:withObject:] + 18
16 UIKit的0x34f51ec2 - [UIApplication的sendAction::从:forEvent:] + 78
17 UIKit的0x34f51e62 - [UIApplication的sendAction:toTarget:fromSender:forEvent:] + 26
18 UIKit的0x34f51e34 - [UIControl sendAction:到:forEvent:] + 32
19 UIKit的0x34f51b86 - [UIControl(内部)_sendActionsForEvents:withEvent:方法] + 350
20 UIKit的0x34f5241c - [UIControl touchesEnded:withEvent:方法] + 336
21 UIKit的0x34f50bee - [一个UIWindow _sendTouchesForEvent:] + 362
22 UIKit的0x34f50568 - [一个UIWindow的SendEvent:] + 256
23 UIKit的0x34f3930c - [UIApplication的的SendEvent:] + 292
24 UIKit的0x34f38c4c _UIApplicationHandleEvent + 5084
25 GraphicsServices 0x35873e70 PurpleEventCallback + 660
26的CoreFoundation 0x36126a90 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
27的CoreFoundation 0x36128838 __CFRunLoopDoSource1 + 160
28的CoreFoundation 0x36129606 __CFRunLoopRun + 514
29的CoreFoundation 0x360b9ebc CFRunLoopRunSpecific + 224
30的CoreFoundation 0x360b9dc4 CFRunLoopRunInMode + 52
31 GraphicsServices 0x35873418 GSEventRunModal + 108
32 GraphicsServices 0x358734c4 GSEventRun + 56
33 UIKit的0x34f63d62 - [UIApplication的_run] + 398
34 UIKit的0x34f61800 UIApplicationMain + 664
35 FamiljeQuiz-Frågesport0x00002b4e为0x1000 + 6990
36 FamiljeQuiz-Frågesport0x00002b18为0x1000 + 6936线程1名:调度队列:com.apple.libdispatch经理
主题1:
0 libsystem_kernel.dylib 0x33df8fbc KEVENT + 24
1 libdispatch.dylib 0x32fc9032 _dispatch_mgr_invoke + 706
2 libdispatch.dylib 0x32fca03a _dispatch_queue_invoke + 86
3 libdispatch.dylib 0x32fc95ea _dispatch_worker_thread2 + 186
4 libsystem_c.dylib 0x33e3258a _pthread_wqthread + 258
5 libsystem_c.dylib 0x33e32bbc start_wqthread + 0线程2名:WebThread
主题2:
0 libsystem_kernel.dylib 0x33df5c00 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x33df5758 mach_msg + 44
2的CoreFoundation 0x361272b8 __CFRunLoopServiceMachPort + 88
3的CoreFoundation 0x36129562 __CFRunLoopRun + 350
4的CoreFoundation 0x360b9ebc CFRunLoopRunSpecific + 224
5的CoreFoundation 0x360b9dc4 CFRunLoopRunInMode + 52
6 WebCore的0x3588227e RunWebThread(无效*)+ 382
7 libsystem_c.dylib 0x33e3130a _pthread_start + 242
8 libsystem_c.dylib 0x33e32bb4 thread_start + 0主题三:
0 libsystem_kernel.dylib 0x33df83ec __workq_kernreturn + 8
1 libsystem_c.dylib 0x33e326d8 _pthread_wqthread + 592
2 libsystem_c.dylib 0x33e32bbc start_wqthread + 0螺纹0坠毁与ARM线程状态:
R0:00000000 R1:00000000 R2:00000001 R3:00000000
R4:0x3f66848c R5:0x00000006 R6:0x058ec89c R7:0x2fdfdfc0
R8:0x3fd58bf8 R9:0x00000065 R10:0x362212f0 R11:0x3fd4b964
IP:0x00000148 SP:0x2fdfdfb4 LR:0x34e263bb PC:0x34deca1c
  CPSR:0x080f0010二值图像:
为0x1000 - 0x1dfff + FamiljeQuiz-Frågesport的ARMv7< 81da61ecfb1337cf82536279719bbccd>在/ var /移动/应用/ 68D41895-E120-4C76-9952-3F7CB6E1EBB2 / FamiljeQuiz-Frågesport.app/ FamiljeQuiz-Frågesport
0x2fe00000 - 0x2fe25fff dyld的ARMv7的< 4d3190188cbf32a8a73f32a8b5bb7adf> / usr / lib目录/ dyld的
0x3117f000 - 0x3119cfff libsystem_info.dylib的ARMv7< 48016be86e3f3cd9aee​​e1c6590e1ac6f> /usr/lib/system/libsystem_info.dylib
0x311da000 - 0x314c7fff libLAPACK.dylib的ARMv7< b855d60dac01310495453bddfd004f0d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x314f1000 - 0x31529fff由于IOKit的ARMv7< 80ae313ad69d3363935c88e51a11862d> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x3156f000 - 0x3161efff QuartzCore的ARMv7< ef9632c9781f3101916b65e9faae1579> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x3173b000 - 0x3183ffff的JavaScriptCore的ARMv7< 61a94142e2d23dafa2964190dd46e9e3> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x318b8000 - 0x319d9fff CoreGraphics中的ARMv7< 65f6c8701b563542820a26b0dfc4f6a4> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x31a16000 - 0x31a58fff CoreAudio的ARMv7的< c972fd5f8e89333ca680b9a33587f896> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x31b2b000 - 0x31b30fff libsystem_dnssd.dylib的ARMv7< f019bc513a6a37f4a79555b3ffb2a777> /usr/lib/system/libsystem_dnssd.dylib
0x31b39000 - 0x31b62fff MobileCoreServices的ARMv7< 57fef84bdc17301d8bf53ba0fb967fe6> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x31c7e000 - 0x31c83fff libcopyfile.dylib的ARMv7< e32cf2d48a1f3060b372ca7623e4a12b> /usr/lib/system/libcopyfile.dylib
0x31d0e000 - 0x31d11fff IOSurface的ARMv7< ad50e71624583d06b891344d832f9b08> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x33844000 - 0x33849fff MobileKeyBag的ARMv7< 8c35c090bc373cb181fc26b961b8dba5> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x3384f000 - 0x33850fff libdyld.dylib的ARMv7< 7dd4acfe150831e0ae82296587e67e7f> /usr/lib/system/libdyld.dylib
0x33929000 - 0x33a16fff libiconv.2.dylib的ARMv7< f4146ce07e3031ea8a81fa5516fd77d0> /usr/lib/libiconv.2.dylib
0x33a17000 - 0x33a76fff libBLAS.dylib的ARMv7< 0b36b2272aa33a8c9aa22d99c89d7189> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x33af1000 - 0x33b37fff CoreTelephony的ARMv7< af7d1e770e5a3ffd8834a57fb5d40557> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x33b71000 - 0x33b71fff libsystem_sandbox.dylib的ARMv7< f47c01d627853b328e088b3fdd08e87d> /usr/lib/system/libsystem_sandbox.dylib
0x33b87000 - 0x33b8dfff liblockdown.dylib的ARMv7< 14c89b7346433c1f8675f454531f6ca3> /usr/lib/liblockdown.dylib
0x33e9b000 - 0x33ee5fff的libstdc ++ 6.dylib的ARMv7< e98c3fd72ba43d02aac24b08f7219eb7> /usr/lib/libstdc++.6.dylib
0x33ef6000 - 0x33fa7fff的WebKit的ARMv7< eb9a0d69c64b3127b2bffd71641add3b> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x33fb1000 - 0x33fb3fff libAccessibility.dylib的ARMv7< d55f1553d14831a2a5435ae27ef75ef4> /usr/lib/libAccessibility.dylib
0x33fb8000 - 0x33fc5fff libdispatch.dylib的ARMv7< 9a0511ad5ebc3db898f1f49ed1a73d34> /usr/lib/system/libdispatch.dylib
0x34399000 - 0x3445dfff libobjc.A.dylib的ARMv7< a89ef30f6d663254babb6329ce02ca3d> /usr/lib/libobjc.A.dylib
0x34482000 - 0x34485fff libmacho.dylib的ARMv7< 53908d448e9e32418652a4afee5bc578> /usr/lib/system/libmacho.dylib
0x344bb000 - 0x344bffff AssetsLibraryServices的ARMv7< e1cbfe599c9​​6369ca4bdb0dd99d3cd9f> /System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
0x3453b000 - 0x34554fff libRIP.A.dylib的ARMv7< 4825c3e392983aba947eca06555e4480> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x345b3000 - 0x345b3fff libdnsinfo.dylib的ARMv7< 21415179ffa03f949fa8cc851c6c31c7> /usr/lib/system/libdnsinfo.dylib
0x3477a000 - 0x347affff地址簿的ARMv7< 3f2071a77bc134cd82065eef90d4082f> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x347b0000 - 0x347e7fff安全的ARMv7< 6599f42a910b3b31a0e1d98c883d61cb> /System/Library/Frameworks/Security.framework/Security
0x347fb000 - 0x34810f​​ff libresolv.9.dylib的ARMv7< e92cfbb83f7b330db19181e797bb3f7b> /usr/lib/libresolv.9.dylib
0x34811000 - 0x34812fff libsystem_blocks.dylib的ARMv7< ccc041df3de73eafb7a59e74cdb1702b> /usr/lib/system/libsystem_blocks.dylib
0x34a87000 - 0x34a90fff corevideo的ARMv7的< ea847e6dba2d36b1826b255c73b39539> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x34b1a000 - 0x34c34fff libicucore.A.dylib的ARMv7< bada0c2725bb31a483d5adf9aaf1f8df> /usr/lib/libicucore.A.dylib
0x34c43000 - 0x34c4afff libbz2.1.0.dylib的ARMv7< 0a082e1d475432959ba93aa3dbf7fb31> /usr/lib/libbz2.1.0.dylib
0x34c81000 - 0x34cb9fff libCGFreetype.A.dylib的ARMv7< 416c77100b453e3f838831c4c857f8c7> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x34ddb000 - 0x34df2fff libsystem_kernel.dylib的ARMv7< c4ebe7eb2e6c3a2d9bd3620a4d6dbc0e> /usr/lib/system/libsystem_kernel.dylib
0x34df3000 - 0x34e74fff libsystem_c.dylib的ARMv7< 17ee3fe220c23b1​​f898d21ba25b2bcac> /usr/lib/system/libsystem_c.dylib
0x34ec6000 - 0x34f05fff libSystem.B.dylib的ARMv7< 64cf947dd8423eeeb677f81dd3eb2d9d> /usr/lib/libSystem.B.dylib
0x34f06000 - 0x34faffff libxml2.2.dylib的ARMv7< 5538d3f2c7d83b88b06168488fe6326b> /usr/lib/libxml2.2.dylib
0x34fb0000 - 0x34fbbfff libz.1.dylib的ARMv7< ac706bee36593dc683fd5a96a389d72e> /usr/lib/libz.1.dylib
0x34fbc000 - 0x34fc0fff libcache.dylib的ARMv7< 362fdd2de66f3e189b5d139c9669a9e3> /usr/lib/system/libcache.dylib
0x35324000 - 0x35324fff vecLib的ARMv7< 0c60cd0a60f43d2791d36cb357d30e3c> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x354ee000 - 0x3560dfff基金会的ARMv7< 09ff368178c5321c9715b9c8d491d53f> /System/Library/Frameworks/Foundation.framework/Foundation
0x35681000 - 0x35682fff libsystem_network.dylib的ARMv7< 3e0b7d6754cd33669c0680525f03ede1> /usr/lib/system/libsystem_network.dylib
0x3568f000 - 0x356e0fff libsqlite3.dylib的ARMv7< 8a41cc6a6d9332308bc415d27577fd24> /usr/lib/libsqlite3.dylib
0x356e1000 - 0x35700fff汜的ARMv7< b178e3efb4d733c694bd5a55e57a314f> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x35701000 - 0x3573efff CoreText的ARMv7< fb6a72faec2330c4b2cd33c2e9c59588> /System/Library/Frameworks/CoreText.framework/CoreText
0x3573f000 - 0x3573ffff libCVMSPluginSupport.dylib的ARMv7< 42d8aa2a31843a6e8bfff745644a7ba5> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib
0x3574a000 - 0x3577dfff AppSupport的ARMv7< 0217468bd9f839229a47910b7816b3d5> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x35807000 - 0x3589cfff的ImageIO的ARMv7< d520e3241d1130e8ac1375ee0f2c1095> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x358c8000 - 0x358d6fff OpenGLES的ARMv7< 5a76beaeaa013f0cbf16e5cb154598ab> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x35c17000 - 0x35c1efff AggregateDictionary的ARMv7< ab9777b39e8e3026ad64dc90323cad7e> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x35d36000 - 0x35d3bfff libnotify.dylib的ARMv7< 9d7198e91de9386a9e5ea43608a66a57> /usr/lib/system/libnotify.dylib
0x35d3c000 - 0x35dabfff校对的ARMv7< 6d843c6aecdd37ae84baa40af8ad7e65> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x35dac000 - 0x35db8fff SpringBoardServices的ARMv7< c68262667ac8397a949ce4e92dfec7db> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x35e10000 - 0x35e1dfff libbsm.0.dylib的ARMv7< 0a1e2bb78d5138419ecad8ba0fe42fdd> /usr/lib/libbsm.0.dylib
0x35f2a000 - 0x362b7fff的UIKit的ARMv7< c271b78464d93cb7bf28c6e49df293ba> /System/Library/Frameworks/UIKit.framework/UIKit
0x36615000 - 0x36615fff加速的ARMv7< 7d5ad465049136afaa1f0d89aac600bc> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x36617000 - 0x36646fff SystemConfiguration的ARMv7< 1d73b8a159363f96bb9c039655c5eae6> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x36647000 - 0x36649fff libgcc_s.1.dylib的ARMv7< a2631ac302f4310dae8367939e16b7c2> /usr/lib/libgcc_s.1.dylib
0x366be000 - 0x366c3fff liblaunch.dylib的ARMv7< f5ccc8234aea3ebd9a88bd37f0fa23ae> /usr/lib/system/liblaunch.dylib
0x366f9000 - 0x367b8fff CFNetwork的ARMv7的< b09e0d53de9f3bc8bde494780f3cdd4f> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x36838000 - 0x3683afff IOMobileFramebuffer的ARMv7< 683f321680763e519d61541170ba2133> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x36843000 - 0x36863fff PrintKit的ARMv7< e5a01ca9083a36afacc08611a398e2ad> /System/Library/PrivateFrameworks/PrintKit.framework/PrintKit
0x36864000 - 0x36870fff GraphicsServices的ARMv7< ff78a9636e933f0dbd222f8d26209788> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x36871000 - 0x36e7cfff的WebCore的ARMv7< 07941e59d0a33f94802c16c76238fddf> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x36ee4000 - 0x36ee8fff libGFXShared.dylib的ARMv7< a0772a32cd8b3b9194bb0c29807c1c5b> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x36ee9000 - 0x3703dfff AudioToolbox的ARMv7< 6619c8c13f8d328e923e797fa8d0df23> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x370a6000 - 0x3718bfff的CoreFoundation的ARMv7< a8444f997111304c9571b3ff974b769c> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x371ab000 - 0x371acfff CoreSurface的ARMv7< 7b83cd757da73e6e826693c29296d3fa> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x371ae000 - 0x371eafff libGLImage.dylib的ARMv7< 9d97699e44ee3651ba4ac37e5adec35b> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x37305000 - 0x3735afff libvDSP.dylib的ARMv7< 0221caba81a235c5a896a835e2aac047> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x374ac000 - 0x374aefff MobileInstallation的ARMv7< 94b6d6c5d9883175af26764567528127> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x374cf000 - 0x375d7fff CoreData的ARMv7< 9843a401dd1d322383e3e40021cc8b95> /System/Library/Frameworks/CoreData.framework/CoreData
0x37797000 - 0x37798fff libremovefile.dylib的ARMv7< 0fa08e1bb47a3d179072a933d1726597> /usr/lib/system/libremovefile.dylib

下面是从控制台的提取物,包含更多信息:

  10月20日7时36分58秒未知UIKitApplication:com.thefroghouse.PRODUCTNAMErfc1034identifier [0x8e0f] [2300]<注意计算值:终止叫做抛出NSException的一个实例后,
10月20日七时36分59秒未知ReportCrash [2304]<注意计算值:制定崩溃报告过程FamiljeQuiz-Frågesport[2300]10月20日7时36分四十二秒未知FamiljeQuiz-Frågesport[2300]<警告计算值:XX:3672
10月20日7时36分四十二秒未知FamiljeQuiz-Frågesport[2300]<警告计算值:EOF 99999
10月20日7时36分四十二秒未知FamiljeQuiz-Frågesport[2300]<警告计算值:#entities在DB后插入:2331
10月20日7时36分58秒未知FamiljeQuiz-Frågesport[2300]<错误计算值:***终止应用程序由于未捕获的异常'NSInvalidArgumentException',原因:'*** - [NSURL initFileURLWithPath:isDirectory:]:零字符串参数


解决方案

  1. 包资源缺少

    有时候,如果你没有明确选择产品 - >清除,然后生成,它可以把一些构建中间体从previous围绕构建,这是不是在新建立present(包括的.xib 文件和图像资源)。

    如果你改变了你的背景图片,但不小心忘了把它放在了复制包资源构建步骤,也可能是测试期间的工作,由于它是在你的build目录present本地,但是当你建分配它没有复制新的背景图像。所以,当你启动应用程序,它可能会立即崩溃,由于引用一个不存在的背景图像。

    虽然,这并不说明它是怎么摆在首位批准..尝试清除构建文件就像我说的,也卸载从测试装置(S)的应用程序,你再次测试前完全


  2. 高内存使用

    刚刚超越您的测试设备可以发射内存警告2级(这将可能获得应用程序终止前处理标记你做​​可能会推内存分配在一​​个特定点(一个问题的加载过程中)的变化由看门狗)。这将使意义,如果你用更少的应用程序开放测试,但现在你要和一帮在后台运行其他应用程序的运行。

    跟踪@布赖恩的建议,并得到崩溃日志,但是也可以参考控制台日志设备,看是否看门狗打死的应用程序。你可能会想尝试关闭所有其他应用您的测试设备上的情况下,它只是一个有特定的设备上运行了太多的应用程序的问题。



编辑:的从你的堆栈跟踪看看线10和11:

  10的CoreFoundation 0x3614f4c4 + NSException提高:格式:] + 28
11基金0x34514e28 - [NSURL(NSURL)initFileURLWithPath:isDirectory:] + 68

这不是能建立一个文件URL(在本地系统上一个链接到一个文件)。所以,你可能已经尝试初始化不正确格式的URL。如果该路径实际上不存在,则<一href=\"http://developer.apple.com/library/ios/documentation/Cocoa/Reference/Foundation/Classes/NSURL_Class/Reference/Reference.html#//apple_ref/occ/clm/NSURL/fileURLWithPath%3a\"相对=nofollow>文档状态:


  

如果路径不会在文件系统中存在,该方法假定它重新presents文件,且不添加尾部斜杠。


因此​​,它必须是你要么通过意外的方法,或网址的格式是无效的。

I just did an update of my application to app-store and after approval i downloaded it and it crashed. I have not seen any problem during testing at all.

One thing that could be a problem is that i lowered the approved IOS release from 4.2 to 4.0, maybe that is the problem but it does not explain why i did not have any problem on my device.

Anyone that can help me with some ideas so i can find the problem as i do not even know where to start looking except the IOS level?

Here is the crash log:

Incident Identifier: B95E9513-DBCD-40F1-A24C-7116285D66F8
CrashReporter Key:   f7781ad5687b1a1cbfdcc3c014ba4524bdb0e48e
Hardware Model:      iPhone3,1
Process:         FamiljeQuiz-Frågesport [2300]
Path:            /var/mobile/Applications/68D41895-E120-4C76-9952-    3F7CB6E1EBB2/FamiljeQuiz-Frågesport.app/FamiljeQuiz-Frågesport
Identifier:      FamiljeQuiz-Frågesport
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2011-10-20 07:36:58.974 +0200
OS Version:      iPhone OS 4.3.5 (8L1)
Report Version:  104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread:  0

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib          0x33df7a1c __pthread_kill + 8
1   libsystem_c.dylib               0x33e313b4 pthread_kill + 52
2   libsystem_c.dylib               0x33e29bf8 abort + 72
3   libstdc++.6.dylib               0x32eeaa64 __gnu_cxx::__verbose_terminate_handler() + 376
4   libobjc.A.dylib                 0x333aa06c _objc_terminate + 104
5   libstdc++.6.dylib               0x32ee8e36 __cxxabiv1::__terminate(void (*)()) + 46
6   libstdc++.6.dylib               0x32ee8e8a std::terminate() + 10
7   libstdc++.6.dylib               0x32ee8f5a __cxa_throw + 78
8   libobjc.A.dylib                 0x333a8c84 objc_exception_throw + 64
9   CoreFoundation                  0x3614f48a +[NSException raise:format:arguments:] +   62
10  CoreFoundation                  0x3614f4c4 +[NSException raise:format:] + 28
11  Foundation                      0x34514e28 -[NSURL(NSURL) initFileURLWithPath:isDirectory:] + 68
12  Foundation                      0x345279c4 +[NSURL(NSURL) fileURLWithPath:isDirectory:] + 28
13  FamiljeQuiz-Frågesport          0x0000e808 0x1000 + 55304
14  FamiljeQuiz-Frågesport          0x0000d6c4 0x1000 + 50884
15  CoreFoundation                  0x360bf56a -[NSObject(NSObject) performSelector:withObject:withObject:] + 18
16  UIKit                           0x34f51ec2 -[UIApplication sendAction:to:from:forEvent:] + 78
17  UIKit                           0x34f51e62 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 26
18  UIKit                           0x34f51e34 -[UIControl sendAction:to:forEvent:] + 32
19  UIKit                           0x34f51b86 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 350
20  UIKit                           0x34f5241c -[UIControl touchesEnded:withEvent:] + 336
21  UIKit                           0x34f50bee -[UIWindow _sendTouchesForEvent:] + 362
22  UIKit                           0x34f50568 -[UIWindow sendEvent:] + 256
23  UIKit                           0x34f3930c -[UIApplication sendEvent:] + 292
24  UIKit                           0x34f38c4c _UIApplicationHandleEvent + 5084
25  GraphicsServices                0x35873e70 PurpleEventCallback + 660
26  CoreFoundation                  0x36126a90 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
27  CoreFoundation                  0x36128838 __CFRunLoopDoSource1 + 160
28  CoreFoundation                  0x36129606 __CFRunLoopRun + 514
29  CoreFoundation                  0x360b9ebc CFRunLoopRunSpecific + 224
30  CoreFoundation                  0x360b9dc4 CFRunLoopRunInMode + 52
31  GraphicsServices                0x35873418 GSEventRunModal + 108
32  GraphicsServices                0x358734c4 GSEventRun + 56
33  UIKit                           0x34f63d62 -[UIApplication _run] + 398
34  UIKit                           0x34f61800 UIApplicationMain + 664
35  FamiljeQuiz-Frågesport          0x00002b4e 0x1000 + 6990
36  FamiljeQuiz-Frågesport          0x00002b18 0x1000 + 6936

Thread 1 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0   libsystem_kernel.dylib          0x33df8fbc kevent + 24
1   libdispatch.dylib               0x32fc9032 _dispatch_mgr_invoke + 706
2   libdispatch.dylib               0x32fca03a _dispatch_queue_invoke + 86
3   libdispatch.dylib               0x32fc95ea _dispatch_worker_thread2 + 186
4   libsystem_c.dylib               0x33e3258a _pthread_wqthread + 258
5   libsystem_c.dylib               0x33e32bbc start_wqthread + 0

Thread 2 name:  WebThread
Thread 2:
0   libsystem_kernel.dylib          0x33df5c00 mach_msg_trap + 20
1   libsystem_kernel.dylib          0x33df5758 mach_msg + 44
2   CoreFoundation                  0x361272b8 __CFRunLoopServiceMachPort + 88
3   CoreFoundation                  0x36129562 __CFRunLoopRun + 350
4   CoreFoundation                  0x360b9ebc CFRunLoopRunSpecific + 224
5   CoreFoundation                  0x360b9dc4 CFRunLoopRunInMode + 52
6   WebCore                         0x3588227e RunWebThread(void*) + 382
7   libsystem_c.dylib               0x33e3130a _pthread_start + 242
8   libsystem_c.dylib               0x33e32bb4 thread_start + 0

Thread 3:
0   libsystem_kernel.dylib          0x33df83ec __workq_kernreturn + 8
1   libsystem_c.dylib               0x33e326d8 _pthread_wqthread + 592
2   libsystem_c.dylib               0x33e32bbc start_wqthread + 0

Thread 0 crashed with ARM Thread State:
r0: 0x00000000    r1: 0x00000000      r2: 0x00000001      r3: 0x00000000
r4: 0x3f66848c    r5: 0x00000006      r6: 0x058ec89c      r7: 0x2fdfdfc0
r8: 0x3fd58bf8    r9: 0x00000065     r10: 0x362212f0     r11: 0x3fd4b964
ip: 0x00000148    sp: 0x2fdfdfb4      lr: 0x34e263bb      pc: 0x34deca1c
  cpsr: 0x080f0010

Binary Images:
0x1000 -    0x1dfff +FamiljeQuiz-Frågesport armv7  <81da61ecfb1337cf82536279719bbccd>  /var/mobile/Applications/68D41895-E120-4C76-9952-3F7CB6E1EBB2/FamiljeQuiz-    Frågesport.app/FamiljeQuiz-Frågesport
0x2fe00000 - 0x2fe25fff  dyld armv7  <4d3190188cbf32a8a73f32a8b5bb7adf> /usr/lib/dyld
0x3117f000 - 0x3119cfff  libsystem_info.dylib armv7  <48016be86e3f3cd9aeee1c6590e1ac6f> /usr/lib/system/libsystem_info.dylib
0x311da000 - 0x314c7fff  libLAPACK.dylib armv7  <b855d60dac01310495453bddfd004f0d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x314f1000 - 0x31529fff  IOKit armv7  <80ae313ad69d3363935c88e51a11862d> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x3156f000 - 0x3161efff  QuartzCore armv7  <ef9632c9781f3101916b65e9faae1579> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x3173b000 - 0x3183ffff  JavaScriptCore armv7  <61a94142e2d23dafa2964190dd46e9e3> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x318b8000 - 0x319d9fff  CoreGraphics armv7  <65f6c8701b563542820a26b0dfc4f6a4> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x31a16000 - 0x31a58fff  CoreAudio armv7  <c972fd5f8e89333ca680b9a33587f896> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x31b2b000 - 0x31b30fff  libsystem_dnssd.dylib armv7  <f019bc513a6a37f4a79555b3ffb2a777> /usr/lib/system/libsystem_dnssd.dylib
0x31b39000 - 0x31b62fff  MobileCoreServices armv7  <57fef84bdc17301d8bf53ba0fb967fe6> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x31c7e000 - 0x31c83fff  libcopyfile.dylib armv7  <e32cf2d48a1f3060b372ca7623e4a12b> /usr/lib/system/libcopyfile.dylib
0x31d0e000 - 0x31d11fff  IOSurface armv7  <ad50e71624583d06b891344d832f9b08> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x33844000 - 0x33849fff  MobileKeyBag armv7  <8c35c090bc373cb181fc26b961b8dba5> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x3384f000 - 0x33850fff  libdyld.dylib armv7  <7dd4acfe150831e0ae82296587e67e7f> /usr/lib/system/libdyld.dylib
0x33929000 - 0x33a16fff  libiconv.2.dylib armv7  <f4146ce07e3031ea8a81fa5516fd77d0> /usr/lib/libiconv.2.dylib
0x33a17000 - 0x33a76fff  libBLAS.dylib armv7  <0b36b2272aa33a8c9aa22d99c89d7189> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x33af1000 - 0x33b37fff  CoreTelephony armv7  <af7d1e770e5a3ffd8834a57fb5d40557> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x33b71000 - 0x33b71fff  libsystem_sandbox.dylib armv7  <f47c01d627853b328e088b3fdd08e87d> /usr/lib/system/libsystem_sandbox.dylib
0x33b87000 - 0x33b8dfff  liblockdown.dylib armv7  <14c89b7346433c1f8675f454531f6ca3> /usr/lib/liblockdown.dylib
0x33e9b000 - 0x33ee5fff  libstdc++.6.dylib armv7  <e98c3fd72ba43d02aac24b08f7219eb7> /usr/lib/libstdc++.6.dylib
0x33ef6000 - 0x33fa7fff  WebKit armv7  <eb9a0d69c64b3127b2bffd71641add3b> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x33fb1000 - 0x33fb3fff  libAccessibility.dylib armv7  <d55f1553d14831a2a5435ae27ef75ef4> /usr/lib/libAccessibility.dylib
0x33fb8000 - 0x33fc5fff  libdispatch.dylib armv7  <9a0511ad5ebc3db898f1f49ed1a73d34> /usr/lib/system/libdispatch.dylib
0x34399000 - 0x3445dfff  libobjc.A.dylib armv7  <a89ef30f6d663254babb6329ce02ca3d> /usr/lib/libobjc.A.dylib
0x34482000 - 0x34485fff  libmacho.dylib armv7  <53908d448e9e32418652a4afee5bc578> /usr/lib/system/libmacho.dylib
0x344bb000 - 0x344bffff  AssetsLibraryServices armv7  <e1cbfe599c96369ca4bdb0dd99d3cd9f> /System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
0x3453b000 - 0x34554fff  libRIP.A.dylib armv7  <4825c3e392983aba947eca06555e4480> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x345b3000 - 0x345b3fff  libdnsinfo.dylib armv7  <21415179ffa03f949fa8cc851c6c31c7> /usr/lib/system/libdnsinfo.dylib
0x3477a000 - 0x347affff  AddressBook armv7  <3f2071a77bc134cd82065eef90d4082f> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x347b0000 - 0x347e7fff  Security armv7  <6599f42a910b3b31a0e1d98c883d61cb> /System/Library/Frameworks/Security.framework/Security
0x347fb000 - 0x34810fff  libresolv.9.dylib armv7  <e92cfbb83f7b330db19181e797bb3f7b> /usr/lib/libresolv.9.dylib
0x34811000 - 0x34812fff  libsystem_blocks.dylib armv7  <ccc041df3de73eafb7a59e74cdb1702b> /usr/lib/system/libsystem_blocks.dylib
0x34a87000 - 0x34a90fff  CoreVideo armv7  <ea847e6dba2d36b1826b255c73b39539> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x34b1a000 - 0x34c34fff  libicucore.A.dylib armv7  <bada0c2725bb31a483d5adf9aaf1f8df> /usr/lib/libicucore.A.dylib
0x34c43000 - 0x34c4afff  libbz2.1.0.dylib armv7  <0a082e1d475432959ba93aa3dbf7fb31> /usr/lib/libbz2.1.0.dylib
0x34c81000 - 0x34cb9fff  libCGFreetype.A.dylib armv7  <416c77100b453e3f838831c4c857f8c7> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x34ddb000 - 0x34df2fff  libsystem_kernel.dylib armv7  <c4ebe7eb2e6c3a2d9bd3620a4d6dbc0e> /usr/lib/system/libsystem_kernel.dylib
0x34df3000 - 0x34e74fff  libsystem_c.dylib armv7  <17ee3fe220c23b1f898d21ba25b2bcac> /usr/lib/system/libsystem_c.dylib
0x34ec6000 - 0x34f05fff  libSystem.B.dylib armv7  <64cf947dd8423eeeb677f81dd3eb2d9d> /usr/lib/libSystem.B.dylib
0x34f06000 - 0x34faffff  libxml2.2.dylib armv7  <5538d3f2c7d83b88b06168488fe6326b> /usr/lib/libxml2.2.dylib
0x34fb0000 - 0x34fbbfff  libz.1.dylib armv7  <ac706bee36593dc683fd5a96a389d72e> /usr/lib/libz.1.dylib
0x34fbc000 - 0x34fc0fff  libcache.dylib armv7  <362fdd2de66f3e189b5d139c9669a9e3> /usr/lib/system/libcache.dylib
0x35324000 - 0x35324fff  vecLib armv7  <0c60cd0a60f43d2791d36cb357d30e3c> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x354ee000 - 0x3560dfff  Foundation armv7  <09ff368178c5321c9715b9c8d491d53f> /System/Library/Frameworks/Foundation.framework/Foundation
0x35681000 - 0x35682fff  libsystem_network.dylib armv7  <3e0b7d6754cd33669c0680525f03ede1> /usr/lib/system/libsystem_network.dylib
0x3568f000 - 0x356e0fff  libsqlite3.dylib armv7  <8a41cc6a6d9332308bc415d27577fd24> /usr/lib/libsqlite3.dylib
0x356e1000 - 0x35700fff  Bom armv7  <b178e3efb4d733c694bd5a55e57a314f> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x35701000 - 0x3573efff  CoreText armv7  <fb6a72faec2330c4b2cd33c2e9c59588> /System/Library/Frameworks/CoreText.framework/CoreText
0x3573f000 - 0x3573ffff  libCVMSPluginSupport.dylib armv7  <42d8aa2a31843a6e8bfff745644a7ba5> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib
0x3574a000 - 0x3577dfff  AppSupport armv7  <0217468bd9f839229a47910b7816b3d5> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x35807000 - 0x3589cfff  ImageIO armv7  <d520e3241d1130e8ac1375ee0f2c1095> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x358c8000 - 0x358d6fff  OpenGLES armv7  <5a76beaeaa013f0cbf16e5cb154598ab> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x35c17000 - 0x35c1efff  AggregateDictionary armv7  <ab9777b39e8e3026ad64dc90323cad7e> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x35d36000 - 0x35d3bfff  libnotify.dylib armv7  <9d7198e91de9386a9e5ea43608a66a57> /usr/lib/system/libnotify.dylib
0x35d3c000 - 0x35dabfff  ProofReader armv7  <6d843c6aecdd37ae84baa40af8ad7e65> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x35dac000 - 0x35db8fff  SpringBoardServices armv7  <c68262667ac8397a949ce4e92dfec7db> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x35e10000 - 0x35e1dfff  libbsm.0.dylib armv7  <0a1e2bb78d5138419ecad8ba0fe42fdd> /usr/lib/libbsm.0.dylib
0x35f2a000 - 0x362b7fff  UIKit armv7  <c271b78464d93cb7bf28c6e49df293ba> /System/Library/Frameworks/UIKit.framework/UIKit
0x36615000 - 0x36615fff  Accelerate armv7  <7d5ad465049136afaa1f0d89aac600bc> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x36617000 - 0x36646fff  SystemConfiguration armv7  <1d73b8a159363f96bb9c039655c5eae6> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x36647000 - 0x36649fff  libgcc_s.1.dylib armv7  <a2631ac302f4310dae8367939e16b7c2> /usr/lib/libgcc_s.1.dylib
0x366be000 - 0x366c3fff  liblaunch.dylib armv7  <f5ccc8234aea3ebd9a88bd37f0fa23ae> /usr/lib/system/liblaunch.dylib
0x366f9000 - 0x367b8fff  CFNetwork armv7  <b09e0d53de9f3bc8bde494780f3cdd4f> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x36838000 - 0x3683afff  IOMobileFramebuffer armv7  <683f321680763e519d61541170ba2133> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x36843000 - 0x36863fff  PrintKit armv7  <e5a01ca9083a36afacc08611a398e2ad> /System/Library/PrivateFrameworks/PrintKit.framework/PrintKit
0x36864000 - 0x36870fff  GraphicsServices armv7  <ff78a9636e933f0dbd222f8d26209788> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x36871000 - 0x36e7cfff  WebCore armv7  <07941e59d0a33f94802c16c76238fddf> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x36ee4000 - 0x36ee8fff  libGFXShared.dylib armv7  <a0772a32cd8b3b9194bb0c29807c1c5b> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x36ee9000 - 0x3703dfff  AudioToolbox armv7  <6619c8c13f8d328e923e797fa8d0df23> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x370a6000 - 0x3718bfff  CoreFoundation armv7  <a8444f997111304c9571b3ff974b769c> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x371ab000 - 0x371acfff  CoreSurface armv7  <7b83cd757da73e6e826693c29296d3fa> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x371ae000 - 0x371eafff  libGLImage.dylib armv7  <9d97699e44ee3651ba4ac37e5adec35b> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x37305000 - 0x3735afff  libvDSP.dylib armv7  <0221caba81a235c5a896a835e2aac047> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x374ac000 - 0x374aefff  MobileInstallation armv7  <94b6d6c5d9883175af26764567528127> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x374cf000 - 0x375d7fff  CoreData armv7  <9843a401dd1d322383e3e40021cc8b95> /System/Library/Frameworks/CoreData.framework/CoreData
0x37797000 - 0x37798fff  libremovefile.dylib armv7  <0fa08e1bb47a3d179072a933d1726597> /usr/lib/system/libremovefile.dylib

Here is an extract from the console, with more information:

Oct 20 07:36:58 unknown UIKitApplication:com.thefroghouse.PRODUCTNAMErfc1034identifier[0x8e0f][2300] <Notice>:  terminate called after throwing an instance of 'NSException'
Oct 20 07:36:59 unknown ReportCrash[2304] <Notice>: Formulating crash report for process FamiljeQuiz-Frågesport[2300]



Oct 20 07:36:42 unknown FamiljeQuiz-Frågesport[2300] <Warning>: xx: 3672
Oct 20 07:36:42 unknown FamiljeQuiz-Frågesport[2300] <Warning>: eOF 99999
Oct 20 07:36:42 unknown FamiljeQuiz-Frågesport[2300] <Warning>: #entities in DB after   insert: 2331
Oct 20 07:36:58 unknown FamiljeQuiz-Frågesport[2300] <Error>: *** Terminating app due to     uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL    initFileURLWithPath:isDirectory:]: nil string parameter'

解决方案

  1. Bundle resources missing

    Sometimes, if you don't explicitly select Product->Clean and then build, it can leave some of the build intermediates around from previous builds, which are not present in newer builds (including .xib files and image resources).

    If you changed your background image, but accidentally forgot to put it in the "Copy Bundle Resources" build step, it could be working during testing due to it being present in your build directory locally, but when you built for distribution it didn't copy the new background image in. So when you start up the app, it may crash immediately due to referencing a non-existent background image.

    Although, that doesn't explain how it got approved in the first place.. try purging build files like I said, and also uninstalling the app from your testing device(s) entirely before you test again.

  2. High memory usage

    The changes you made might have pushed the memory allocation at one particular point (during the loading of a question) just beyond the mark that your testing device can handle before emitting a memory warning level 2 (which would likely get the app terminated by Watchdog). This would make sense if you tested it with less apps open, but now you're trying to run it with a bunch of other apps running in the background.

    Follow @brian's advice and get crash logs, but also read the Console log for the device to see if Watchdog killed the app. You might want to try closing all other apps on your testing device in case it's just a problem of having too many apps running on your specific device.


EDIT: Look at lines 10 and 11 from your stack trace:

10  CoreFoundation  0x3614f4c4 +[NSException raise:format:] + 28
11  Foundation      0x34514e28 -[NSURL(NSURL) initFileURLWithPath:isDirectory:] + 68

It's not able to construct a file URL (a link to a file on the local system). So, you may have tried to initialise an incorrectly-formatted URL. If the path doesn't actually exist, the documentation states:

If path does not exist in the file system, the method assumes that it represents a file and does not append a trailing slash.

So it must be that you've either passed nil by accident to the method, or the format of the URL is invalid.

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