我通过Crittercism收到崩溃报告，我成功地象征着他们。但它只包含对'main'的调用，其余的都是神秘的东西，我无法解密。我自己无法重现崩溃。
有谁能解释我出了什么问题？
Thread: Unknown Name (Crashed)
0 libobjc.A.dylib 0x3194df76 0x3193b000 + 77686
1 Foundation 0x24a5d2a3 0x248d0000 + 1626787
2 UIKit 0x277dfe85 0x27124000 + 7061125
3 UIKit 0x277df6c7 0x27124000 + 7059143
4 UIKit 0x274b60c5 0x27124000 + 3743941
5 UIKit 0x2740fc65 0x27124000 + 3062885
6 UIKit 0x27130b57 0x27124000 + 52055
7 QuartzCore 0x26b5bf65 0x26b4f000 + 53093
8 QuartzCore 0x26b57951 0x26b4f000 + 35153
9 QuartzCore 0x26b862a5 0x26b4f000 + 225957
10 UIKit 0x2741b41b 0x27124000 + 3109915
11 UIKit 0x2741d627 0x27124000 + 3118631
12 UIKit 0x2721b199 0x27124000 + 1012121
13 UIKit 0x2721b0b9 0x27124000 + 1011897
14 UIKit 0x276003ab 0x27124000 + 5096363
15 UIKit 0x27164795 0x27124000 + 264085
16 UIKit 0x2717a3d1 0x27124000 + 353233
17 UIKit 0x27600319 0x27124000 + 5096217
18 UIKit 0x273bcdd1 0x27124000 + 2723281
19 UIKit 0x273bdcc7 0x27124000 + 2727111
20 UIKit 0x273be10f 0x27124000 + 2728207
21 UIKit 0x271a8a7b 0x27124000 + 543355
22 UIKit 0x271a8a17 0x27124000 + 543255
23 UIKit 0x271a88e7 0x27124000 + 542951
24 UIKit 0x271a8867 0x27124000 + 542823
25 UIKit 0x271a0e83 0x27124000 + 511619
26 UIKit 0x27134bcd 0x27124000 + 68557
27 UIKit 0x27134721 0x27124000 + 67361
28 Foundation 0x24995dc9 0x248d0000 + 810441
29 CoreFoundation 0x23c55517 0x23b87000 + 845079
30 CoreFoundation 0x23c55099 0x23b87000 + 843929
31 CoreFoundation 0x23c53303 0x23b87000 + 836355
32 CoreFoundation 0x23ba0981 0x23b87000 + 104833
33 CoreFoundation 0x23ba0793 0x23b87000 + 104339
34 GraphicsServices 0x2af5f051 0x2af56000 + 36945
35 UIKit 0x27192981 0x27124000 + 452993
36 myTaxiControlmD 0x000f155b main (main.m:6)
37 libdyld.dylib 0x31eddaaf 0x31edc000 + 6831