我正在尝试修改我的 IOS 项目中的一个 xib 文件，尝试拖动 UILabel 或任何其他元素时 xcode 立即崩溃..任何线索将不胜感激..
以下是崩溃报告..
Process: Xcode [22769]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 4.3.2 (1177)
Build Info: IDEApplication-1177000000000000~6
App Item ID: 497799835
App External ID: 7171108
Code Type: X86-64 (Native)
Parent Process: launchd [22632]
Date/Time: 2013-04-03 20:12:57.262 +0530
OS Version: Mac OS X 10.7.5 (11G56)
Report Version: 9
Interval Since Last Report: 1804 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 244 sec
Per-App Crashes Since Last Report: 2
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
ProductBuildVersion: 4E2002
ASSERTION FAILURE in /SourceCache/IDEInterfaceBuilder/IDEInterfaceBuilder- 2182/Framework/Document/IBDocument.m:6465
Details: Cannot turn on autolayout for a document that doesn't support it: <IBCocoaTouchDocument: 0x40230c320>
Object: <IBCocoaTouchDocument: 0x40230c320>
Method: -setUseAutolayout:
Thread: <NSThread: 0x40010a1e0>{name = (null), num = 1}
Hints: None