Ios 崩溃日志结构cxx_自毁

我有下面的崩溃日志

# RAM Free: 1.6%
# Disk Free: 90%
0

Crashed: com.apple.main-thread
EXC_BREAKPOINT 0x000000018afdd6b8

#0. Crashed: com.apple.main-thread
0  UIKit                          0x18afdd6b8 -[UIView release] + 176
1  MyApp                           0x1001449b4 -[MyAdView .cxx_destruct] (Adplace.m:50)
2  libobjc.A.dylib                0x198236b1c object_cxxDestructFromClass(objc_object*, objc_class*) + 148
3  libobjc.A.dylib                0x198243f38 objc_destructInstance + 92
4  libobjc.A.dylib                0x198243f90 object_dispose + 28
5  UIKit                          0x18b32b8b0 -[UIResponder dealloc] + 116
6  UIKit                          0x18afe1de4 -[UIView dealloc] + 1000
7  libdispatch.dylib              0x1988b5954 _dispatch_client_callout + 16
8  libdispatch.dylib              0x1988ba20c _dispatch_main_queue_callback_4CF + 1608
9  CoreFoundation                 0x1865237f8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
10 CoreFoundation                 0x1865218a0 __CFRunLoopRun + 1492
11 CoreFoundation                 0x18644d2d4 CFRunLoopRunSpecific + 396
12 GraphicsServices               0x18fea36fc GSEventRunModal + 168
13 UIKit                          0x18b04af40 UIApplicationMain + 1488
14 MyApp                           0x100069b08 main (main.m:16)
15 libdyld.dylib                  0x1988e2a08 start + 4

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我不明白是什么引起的。对象是自由的吗？还是强行释放它？还会有内存泄漏吗（1.6%的可用内存）？

让我猜猜，您在项目中使用的是核心数据吗？让我猜猜，你在项目中使用核心数据对吗？