每次当我尝试增加'高度约束'时，xcode 6意外退出，
删除用户数据，关闭源代码控制（如某些帖子建议），没有效果，仍然崩溃（同时显示索引......永远不会完成）。即使重新安装的xCode，没有任何影响，仍然说同样的。
有没有人修复过这样的xCode？
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
Sending _userDidPressStepper: to <IBLayoutConstraintConstantEditingController: 0x7ff622d2eb50> from <NSStepper: 0x7ff61e4bdfa0>
ProductBuildVersion: 6A1052d
ASSERTION FAILURE in /SourceCache/IDEInterfaceBuilder/IDEInterfaceBuilder-6250/InterfaceBuilderKit/AutoLayout/IBLayoutConstraintPropertyEditingController.m:17
Details: Assertion failed: constraint == constraintToModify
Object: <IBLayoutConstraintConstantEditingController: 0x7ff622d2eb50>
Method: -modifyConstraintProperty:forEditedObject:withBlock:
Thread: <NSThread: 0x7ff618c33660>{number = 1, name = main}
Hints:
0: Sending _userDidPressStepper: to <IBLayoutConstraintConstantEditingController: 0x7ff622d2eb50> from <NSStepper: 0x7ff61e4bdfa0>
Backtrace:
0 0x000000010f2689ea -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit)
1 0x000000010e022d1f _DVTAssertionHandler (in DVTFoundation)
2 0x000000010e02300e _DVTAssertionFailureHandler (in DVTFoundation)
3 0x000000010e022f70 _DVTAssertionFailureHandler (in DVTFoundation)
4 0x0000000117cb99c2 __98-[IBLayoutConstraintPropertyEditingController modifyConstraintProperty:forEditedObject:withBlock:]_block_invoke (in IDEInterfaceBuilderKit)
5 0x0000000117cad018 -[IBLayoutConstraint(IBLayoutConstraintIntegration) ibModifyPropertyOfConstraintWithOptions:usingBlock:] (in IDEInterfaceBuilderKit)
6 0x0000000117cb992a -[IBLayoutConstraintPropertyEditingController modifyConstraintProperty:forEditedObject:withBlock:] (in IDEInterfaceBuilderKit)
7 0x0000000117cb9c70 -[IBLayoutConstraintPropertyEditingController setConstraintConstant:forEditedObject:] (in IDEInterfaceBuilderKit)
8 0x0000000117caae7b -[IBLayoutConstraintConstantEditingController _applyConstantUsingBlock:] (in IDEInterfaceBuilderKit)
9 0x0000000117ab0e22 -[IBAutolayoutPropertyEditingController _userDidPressStepper:] (in IDEInterfaceBuilderKit)
10 0x00007fff9c166cd7 _os_activity_initiate (in libsystem_trace.dylib)
11 0x00007fff8fd50497 -[NSApplication sendAction:to:from:] (in AppKit)
12 0x000000010e58e270 __37-[DVTApplication sendAction:to:from:]_block_invoke (in DVTKit)
13 0x000000010e024032 DVTInvokeWithFailureHint (in DVTFoundation)
14 0x000000010e45867e -[DVTApplication sendAction:to:from:] (in DVTKit)
15 0x00007fff8fd502c0 -[NSControl sendAction:to:] (in AppKit)
16 0x00007fff8ff24c5f __26-[NSCell _sendActionFrom:]_block_invoke (in AppKit)
17 0x00007fff9c166cd7 _os_activity_initiate (in libsystem_trace.dylib)
18 0x00007fff8fd98ddc -[NSCell _sendActionFrom:] (in AppKit)
19 0x00007fff90199e4f -[NSStepperCell _sendActionFrom:] (in AppKit)
20 0x00007fff8ff25b39 __48-[NSCell trackMouse:inRect:ofView:untilMouseUp:]_block_invoke (in AppKit)
21 0x00007fff9c166cd7 _os_activity_initiate (in libsystem_trace.dylib)
22 0x00007fff8fdb3391 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] (in AppKit)
23 0x00007fff90199c69 -[NSStepperCell trackMouse:inRect:ofView:untilMouseUp:] (in AppKit)
24 0x00007fff8fdb2139 -[NSControl mouseDown:] (in AppKit)
25 0x00007fff902abf4f -[NSWindow _reallySendEvent:] (in AppKit)
26 0x00007fff8fd3650c -[NSWindow sendEvent:] (in AppKit)
27 0x000000010f28b54b -[IDEWorkspaceWindow sendEvent:] (in IDEKit)
28 0x00007fff8fce8096 -[NSApplication sendEvent:] (in AppKit)
29 0x000000010f0347f4 -[IDEApplication sendEvent:] (in IDEKit)
30 0x00007fff8fb74e98 -[NSApplication run] (in AppKit)
31 0x00007fff8fb602d4 NSApplicationMain (in AppKit)
32 0x00007fff93d995c9 start (in libdyld.dylib)
崩溃线程：/
Performing @selector(_userDidPressStepper:) from sender NSStepper 0x7ff61e4bdfa0
abort() called
Application Specific Signatures:
constraint == constraintToModify
crash report:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff9576b282 __pthread_kill + 10
1 libsystem_c.dylib 0x00007fff92559b73 abort + 129
2 com.apple.dt.IDEKit 0x000000010f2685c6 +[IDEAssertionHandler _handleAssertionWithLogString:assertionSignature:assertionReason:extraBacktrace:] + 1510
3 com.apple.dt.IDEKit 0x000000010f268ba0 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] + 1169
4 com.apple.dt.DVTFoundation 0x000000010e022d1f _DVTAssertionHandler + 367
5 com.apple.dt.DVTFoundation 0x000000010e02300e _DVTAssertionFailureHandler + 407
6 com.apple.dt.DVTFoundation 0x000000010e022f70 _DVTAssertionFailureHandler + 249
7 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117cb99c2 __98-[IBLayoutConstraintPropertyEditingController modifyConstraintProperty:forEditedObject:withBlock:]_block_invoke + 81
8 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117cad018 -[IBLayoutConstraint(IBLayoutConstraintIntegration) ibModifyPropertyOfConstraintWithOptions:usingBlock:] + 463
9 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117cb992a -[IBLayoutConstraintPropertyEditingController modifyConstraintProperty:forEditedObject:withBlock:] + 346
10 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117cb9c70 -[IBLayoutConstraintPropertyEditingController setConstraintConstant:forEditedObject:] + 167
11 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117caae7b -[IBLayoutConstraintConstantEditingController _applyConstantUsingBlock:] + 454
12 com.apple.dt.IDE.IDEInterfaceBuilderKit 0x0000000117ab0e22 -[IBAutolayoutPropertyEditingController _userDidPressStepper:] + 112
13 libsystem_trace.dylib 0x00007fff9c166cd7 _os_activity_initiate + 75
14 com.apple.AppKit 0x00007fff8fd50497 -[NSApplication sendAction:to:from:] + 410
15 com.apple.dt.DVTKit 0x000000010e58e270 __37-[DVTApplication sendAction:to:from:]_block_invoke + 379
16 com.apple.dt.DVTFoundation 0x000000010e024032 DVTInvokeWithFailureHint + 83
17 com.apple.dt.DVTKit 0x000000010e45867e -[DVTApplication sendAction:to:from:] + 335
18 com.apple.AppKit 0x00007fff8fd502c0 -[NSControl sendAction:to:] + 86
19 com.apple.AppKit 0x00007fff8ff24c5f __26-[NSCell _sendActionFrom:]_block_invoke + 131
20 libsystem_trace.dylib 0x00007fff9c166cd7 _os_activity_initiate + 75
21 com.apple.AppKit 0x00007fff8fd98ddc -[NSCell _sendActionFrom:] + 144
22 com.apple.AppKit 0x00007fff90199e4f -[NSStepperCell _sendActionFrom:] + 104
23 com.apple.AppKit 0x00007fff8ff25b39 __48-[NSCell trackMouse:inRect:ofView:untilMouseUp:]_block_invoke + 219
24 libsystem_trace.dylib 0x00007fff9c166cd7 _os_activity_initiate + 75
25 com.apple.AppKit 0x00007fff8fdb3391 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 1318
26 com.apple.AppKit 0x00007fff90199c69 -[NSStepperCell trackMouse:inRect:ofView:untilMouseUp:] + 129
27 com.apple.AppKit 0x00007fff8fdb2139 -[NSControl mouseDown:] + 714
28 com.apple.AppKit 0x00007fff902abf4f -[NSWindow _reallySendEvent:] + 12827
29 com.apple.AppKit 0x00007fff8fd3650c -[NSWindow sendEvent:] + 368
30 com.apple.dt.IDEKit 0x000000010f28b54b -[IDEWorkspaceWindow sendEvent:] + 159
31 com.apple.AppKit 0x00007fff8fce8096 -[NSApplication sendEvent:] + 2238
32 com.apple.dt.IDEKit 0x000000010f0347f4 -[IDEApplication sendEvent:] + 924
33 com.apple.AppKit 0x00007fff8fb74e98 -[NSApplication run] + 711
34 com.apple.AppKit 0x00007fff8fb602d4 NSApplicationMain + 1832
35 libdyld.dylib 0x00007fff93d995c9 start + 1
请帮助我解决问题，Thx ......
答案 0 :(得分：-1)
您的开发者帐户已过期吗？我今天遇到了这个问题，昨天，在我的账户下建立的项目运行得非常好。今天我发现我的开发者已经过期了。