有没有人成功地在Swift上运行绑定（Xcode6 Beta 5）？ 我正在开发一个基于文档的应用程序，甚至只是尝试绑定一个数组，如：
dynamic var myArray: NSMutableArray = []
到＆＃34; contentArray＆＃34;一个NSArrayController失败并给出以下错误
线程1：EXC_BAD_ACCESS（代码= 1，地址= 0x0）
知道为什么它不起作用吗？
对我而言，KVO / KVC遵守Swift似乎存在问题
这是调用堆栈的一部分：
Foundation`-[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:]:
0x7fff983652ff: pushq %rbp
0x7fff98365300: movq %rsp, %rbp
0x7fff98365303: pushq %r15
0x7fff98365305: pushq %r14
0x7fff98365307: pushq %r13
0x7fff98365309: pushq %r12
0x7fff9836530b: pushq %rbx
0x7fff9836530c: subq $0x58, %rsp
0x7fff98365310: movq %r9, %r13
0x7fff98365313: movq %r8, %r12
0x7fff98365316: movq %rcx, %r15
0x7fff98365319: movq %rdx, %r14
0x7fff9836531c: movq %rdi, %rbx
0x7fff9836531f: leaq -0x1ab019ce(%rip), %rax ; _NSKeyValueObserverRegistrationLock
0x7fff98365326: movq (%rax), %rdi
0x7fff98365329: testq %rdi, %rdi
0x7fff9836532c: je 0x7fff9836533b ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 60
0x7fff9836532e: movq -0x1ab1e5dd(%rip), %rsi ; "lock"
0x7fff98365335: callq *-0x1abc5a53(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff9836533b: movq %rbx, %rdi
0x7fff9836533e: callq 0x7fff985d1600 ; symbol stub for: object_getClass
0x7fff98365343: movq %rax, %rdi
0x7fff98365346: movq %r15, %rsi
0x7fff98365349: callq 0x7fff9833e04d ; NSKeyValuePropertyForIsaAndKeyPath
0x7fff9836534e: movq -0x1ab1c28d(%rip), %rsi ; "_addObserver:forProperty:options:context:"
0x7fff98365355: movq %rbx, %rdi
0x7fff98365358: movq %r14, %rdx
0x7fff9836535b: movq %rax, %rcx
0x7fff9836535e: movq %r12, %r8
0x7fff98365361: movq %r13, %r9
0x7fff98365364: callq *-0x1abc5a82(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff9836536a: xorl %ebx, %ebx
0x7fff9836536c: leaq -0x1ab01a1b(%rip), %rax ; _NSKeyValueObserverRegistrationLock
0x7fff98365373: movq (%rax), %rdi
0x7fff98365376: testq %rdi, %rdi
0x7fff98365379: je 0x7fff98365388 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 137
0x7fff9836537b: movq -0x1ab1e622(%rip), %rsi ; "unlock"
0x7fff98365382: callq *-0x1abc5aa0(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff98365388: testb %bl, %bl
0x7fff9836538a: jne 0x7fff983654e8 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 489
0x7fff98365390: addq $0x58, %rsp
0x7fff98365394: popq %rbx
0x7fff98365395: popq %r12
0x7fff98365397: popq %r13
0x7fff98365399: popq %r14
0x7fff9836539b: popq %r15
0x7fff9836539d: popq %rbp
0x7fff9836539e: retq
0x7fff9836539f: movq %rdx, %rcx
0x7fff983653a2: movq %rax, -0x30(%rbp)
0x7fff983653a6: cmpl $0x2, %ecx
0x7fff983653a9: jne 0x7fff983654cf ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 464
0x7fff983653af: movq -0x30(%rbp), %rdi
0x7fff983653b3: callq 0x7fff985d152e ; symbol stub for: objc_begin_catch
0x7fff983653b8: movq %rax, %rcx
0x7fff983653bb: movq %rcx, -0x30(%rbp)
0x7fff983653bf: movq -0x1ab1d966(%rip), %rax ; "userInfo"
0x7fff983653c6: movq %rcx, %rdi
0x7fff983653c9: movq %rax, %rsi
0x7fff983653cc: callq *-0x1abc5aea(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff983653d2: movq %rax, -0x38(%rbp)
0x7fff983653d6: movq -0x1ab1e105(%rip), %rax ; "name"
0x7fff983653dd: movq -0x30(%rbp), %rdi
0x7fff983653e1: movq %rax, %rsi
0x7fff983653e4: callq *-0x1abc5b02(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff983653ea: leaq -0x1abc1851(%rip), %rcx ; NSUndefinedKeyException
0x7fff983653f1: movq (%rcx), %rdx
0x7fff983653f4: movq %rdx, -0x30(%rbp)
0x7fff983653f8: movq -0x1ab1f1e7(%rip), %rcx ; "isEqualToString:"
0x7fff983653ff: movq %rax, %rdi
0x7fff98365402: movq %rcx, %rsi
0x7fff98365405: callq *-0x1abc5b23(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff9836540b: testb %al, %al
0x7fff9836540d: je 0x7fff983654c1 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 450
0x7fff98365413: movq -0x1ab1ee22(%rip), %rax ; "objectForKey:"
0x7fff9836541a: leaq -0x1abb20e1(%rip), %rcx ; @"NSTargetObjectUserInfoKey"
0x7fff98365421: movq -0x38(%rbp), %rdi
0x7fff98365425: movq %rax, %rsi
0x7fff98365428: movq %rcx, %rdx
0x7fff9836542b: callq *-0x1abc5b49(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff98365431: cmpq %rbx, %rax
0x7fff98365434: jne 0x7fff983654c1 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 450
0x7fff9836543a: movq -0x1ab166a1(%rip), %rax ; (void *)0x00007fff7c5612d0: NSException
0x7fff98365441: movq %rax, -0x40(%rbp)
0x7fff98365445: movq %rbx, %rdi
0x7fff98365448: callq 0x7fff983449c5 ; NSClassFromObject
0x7fff9836544d: movq %rax, -0x48(%rbp)
0x7fff98365451: movq %r14, %rdi
0x7fff98365454: callq 0x7fff983449c5 ; NSClassFromObject
0x7fff98365459: movq %rax, -0x50(%rbp)
0x7fff9836545d: movq -0x1ab1ee6c(%rip), %rax ; "objectForKey:"
0x7fff98365464: leaq -0x1abb210b(%rip), %rcx ; @"NSUnknownUserInfoKey"
0x7fff9836546b: movq -0x38(%rbp), %rdi
0x7fff9836546f: movq %rax, %rsi
0x7fff98365472: movq %rcx, %rdx
0x7fff98365475: callq *-0x1abc5b93(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff9836547b: movq -0x1ab1f19a(%rip), %rsi ; "raise:format:"
0x7fff98365482: movq %rax, 0x28(%rsp)
0x7fff98365487: movq %r13, 0x20(%rsp)
0x7fff9836548c: movq %r12, 0x18(%rsp)
0x7fff98365491: movq %r15, 0x10(%rsp)
0x7fff98365496: movq %r14, 0x8(%rsp)
0x7fff9836549b: movq -0x50(%rbp), %rax
0x7fff9836549f: movq %rax, (%rsp)
0x7fff983654a3: leaq -0x1abae80a(%rip), %rcx ; @"[<%@ %p> addObserver:<%@ %p> forKeyPath:@"%@" options:%lu context:%p] was sent to an object that is not KVC-compliant for the "%@" property."
0x7fff983654aa: xorl %eax, %eax
0x7fff983654ac: movq -0x30(%rbp), %rdx
0x7fff983654b0: movq -0x40(%rbp), %rdi
0x7fff983654b4: movq -0x48(%rbp), %r8
0x7fff983654b8: movq %rbx, %r9
0x7fff983654bb: callq *-0x1abc5bd9(%rip) ; (void *)0x00007fff90f410c0: objc_msgSend
0x7fff983654c1: callq 0x7fff985d156a ; symbol stub for: objc_exception_rethrow
0x7fff983654c6: movq %rax, -0x30(%rbp)
0x7fff983654ca: callq 0x7fff985d155e ; symbol stub for: objc_end_catch
0x7fff983654cf: movq -0x30(%rbp), %rdi
0x7fff983654d3: callq 0x7fff985d152e ; symbol stub for: objc_begin_catch
0x7fff983654d8: movb $0x1, %bl
0x7fff983654da: jmp 0x7fff9836536c ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 109
0x7fff983654df: movq %rax, %r14
0x7fff983654e2: testb %bl, %bl
0x7fff983654e4: je 0x7fff983654fa ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 507
0x7fff983654e6: jmp 0x7fff983654f5 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 502
0x7fff983654e8: callq 0x7fff985d156a ; symbol stub for: objc_exception_rethrow
0x7fff983654ed: jmp 0x7fff98365390 ; -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] + 145
0x7fff983654f2: movq %rax, %r14
0x7fff983654f5: callq 0x7fff985d155e ; symbol stub for: objc_end_catch
0x7fff983654fa: movq %r14, %rdi
0x7fff983654fd: callq 0x7fff985d2ac4 ; symbol stub for: _Unwind_Resume
0x7fff98365502: callq 0x7fff985d15ee ; symbol stub for: objc_terminate
0x7fff98365507: nop
0x7fff98365508: nop
0x7fff98365509: nop
0x7fff9836550a: nop
0x7fff9836550b: nop
0x7fff9836550c: nop
0x7fff9836550d: nop
0x7fff9836550e: nop
0x7fff9836550f: nop
0x7fff98365510: nop
0x7fff98365511: nop
0x7fff98365512: nop
答案 0 :(得分：0)
我有完全相同的问题。对我来说，事实证明，问题不在被观察的物体中，而是在观察者身上。
在我的情况下，我有一个自定义MKAnnotationView正在观察我的其他财产。当注释视图离开地图时，它被缓存，使得无法访问消息。
我怀疑您的财产是通过类似的自定义视图观察的，也许是自定义UITableViewCell？我的解决方案是检查注释何时设置为值和nil，并在发生时添加或删除观察者。