Question

我的应用程序在Simulator中编译并正确运行，但在我的设备上运行时却没有。我正在使用最新的Facebook SDK版本。我正在使用XCode 3.2.6，LLVM编译器1.7并在运行iOS 4.3.5的设备iPhone 4上进行测试。我收到以下错误：

Program received signal:  “SIGSYS”.
warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3.5 (8L1)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
Xcode could not locate source file: FBSettings.m (line: 65)
(gdb) bt
#0  0x00080324 in __33+[FBSettings autoPublishInstall:]_block_invoke_0 (.block_descriptor=0x4e) at /Users/jacl/src/ship/ios-sdk/src/FBSettings.m:65
#1  0x336226aa in dispatch_once$VARIANT$up ()
#2  0x0008031c in +[FBSettings autoPublishInstall:] (self=0x4e, _cmd=0x2fdfdc48, appID=<value temporarily unavailable, due to optimizations>) at once.h:68
#3  0x00077d48 in -[FBSession initWithAppID:permissions:urlSchemeSuffix:tokenCacheStrategy:] (self=<value temporarily unavailable, due to optimizations>, _cmd=0x2fdfdc48, appID=<value temporarily unavailable, due to optimizations>, permissions=<value temporarily unavailable, due to optimizations>, urlSchemeSuffix=<value temporarily unavailable, due to optimizations>, tokenCachingStrategy=<value temporarily unavailable, due to optimizations>) at /Users/jacl/src/ship/ios-sdk/src/FBSession.m:244
#4  0x00077950 in -[FBSession init] (self=<value temporarily unavailable, due to optimizations>, _cmd=<value temporarily unavailable, due to optimizations>) at /Users/jacl/src/ship/ios-sdk/src/FBSession.m:153
#5  0x0007877e in +[FBSession activeSession] (self=<value temporarily unavailable, due to optimizations>, _cmd=<value temporarily unavailable, due to optimizations>) at /Users/jacl/src/ship/ios-sdk/src/FBSession.m:446
#6  0x0002d704 in -[FacebookClient initWithContext:andDocumentsPath:] (self=0x2ae5a0, _cmd=0x9259c, context=0x2bb1b0, path=0x28b0b0) at /Users/username/projects/myapp/myapp-ios/Classes/FacebookClient.m:84
#7  0x00003586 in -[MyAppDelegate application:didFinishLaunchingWithOptions:] (self=0x28be00, _cmd=0x3587dbfe, application=0x263f40, launchOptions=0x0) at /Users/username/projects/myapp/myapp-ios/Classes/MyAppDelegate.m:234
#8  0x355c1820 in -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] ()
#9  0x355bbb64 in -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] ()
#10 0x355907d6 in -[UIApplication handleEvent:withNewEvent:] ()
#11 0x35590214 in -[UIApplication sendEvent:] ()
#12 0x3558fc52 in _UIApplicationHandleEvent ()
#13 0x35ecae76 in PurpleEventCallback ()
#14 0x3677da96 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ ()
#15 0x3677f83e in __CFRunLoopDoSource1 ()
#16 0x3678060c in __CFRunLoopRun ()
#17 0x36710ec2 in CFRunLoopRunSpecific ()
#18 0x36710dca in CFRunLoopRunInMode ()
#19 0x355bad48 in -[UIApplication _run] ()
#20 0x355b8806 in UIApplicationMain ()
#21 0x00002858 in main (argc=1, argv=0x2fdff488) at /Users/username/projects/myapp/myapp-ios/main.m:14

引用的代码（FBSettings.m第65行）似乎没有特别的问题：

+ (void)autoPublishInstall:(NSString *)appID {
    if ([FBSettings shouldAutoPublishInstall]) {
        dispatch_once(&g_publishInstallOnceToken, ^{
            // dispatch_once is great, but not re-entrant.  Inside publishInstall we use FBRequest, which will
            // cause this function to get invoked a second time.  By scheduling the work, we can sidestep the problem.
            [[FBSettings class] performSelector:@selector(publishInstall:) withObject:appID afterDelay:FBPublishDelay];
        });
    }
}

Answer 1

我遇到了这次崩溃，因为我在设备上安装的另一个测试应用程序中使用了相同的FacebookAppID。一旦我删除了其他应用程序，那么我就不会再遇到这种情况。

应用程序崩溃的设备与最新的Facebook iOS SDK

1 个答案: