查找在索引旧项目时导致Xcode8.2崩溃的原因

Question

我有一个旧的objective-c项目，自2013年以来就再也没碰过。

我已经将Xcode升级到了最新的8.2版本，并重新打开了项目(有很多警告)。

通过打开项目，索引几乎立即开始，然后Xcode在几秒钟后崩溃。这是堆栈跟踪的相关(与我相关)部分。

Crashed Thread:        18

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
ProductBuildVersion: 8C38
UNCAUGHT EXCEPTION (NSInvalidArgumentException): *** -[__NSArrayM insertObject:atIndex:]: object cannot be nil
UserInfo: (null)
Hints: None
Backtrace:
  0   __exceptionPreprocess (in CoreFoundation)
  1   DVTFailureHintExceptionPreprocessor (in DVTFoundation)
  2   objc_exception_throw (in libobjc.A.dylib)
  3   -[__NSArrayM insertObject:atIndex:] (in CoreFoundation)
  4   -[XCCompilerSpecificationIBStoryboardLinker _outputNodesForInputNodes:withMacroExpansionScope:] (in DevToolsCore)
  5   -[XCCompilerSpecificationIBStoryboardLinker doSpecialDependencySetupForCommand:withInputNodes:withMacroExpansionScope:] (in DevToolsCore)
  6   -[XCCommandLineToolSpecification createCommandsforInputs:withMacroExpansionScope:] (in DevToolsCore)
  7   -[PBXTargetBuildContext invokeTask:forInputs:withMacroExpansionScope:optionTable:] (in DevToolsCore)
  8   -[XCDependencyGraphCreationContext invokeTask:forInputs:withMacroExpansionScope:optionTable:] (in DevToolsCore)
  9   -[XCCompilerSpecification computeDependenciesForInputNodes:ofType:variant:architecture:outputDirectory:withMacroExpansionScope:] (in DevToolsCore)
 10   -[XCBuildRuleDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:withOutputDirectory:parameterMacros:withMacroExpansionScope:] (in DevToolsCore)
 11   -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) _computeDependenciesForBuildFileReference:usingBuildRule:withMacroExpansionScope:processedPaths:] (in DevToolsCore)
 12   -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:usingBuildRule:withMacroExpansionScope:] (in DevToolsCore)
 13   -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:withMacroExpansionScope:] (in DevToolsCore)
 14   -[XCBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForAllBuildFileReferencesWithMacroExpansionScope:] (in DevToolsCore)
 15   -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForAllBuildFileReferencesWithMacroExpansionScope:] (in DevToolsCore)
 16   -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesWithMacroExpansionScope:] (in DevToolsCore)
 17   -[XCProductTypeSpecification computeDependenciesWithMacroExpansionScope:] (in DevToolsCore)
 18   -[XCNativeTargetDGSnapshot(DependencyGraphCreation) computeDependenciesWithMacroExpansionScope:] (in DevToolsCore)
 19   -[PBXTargetBuildContext createDependencyGraphWithTargetDGSnapshot:] (in DevToolsCore)
 20   -[PBXTargetBuildContext(DependencyGraphEvents) dg_setTargetSnapshot:] (in DevToolsCore)
 21   -[PBXTargetBuildContext(DependencyGraphEvents) processDependencyGraphEvents] (in DevToolsCore)
 22   -[XCBlockQueue _processNextBlockInThreadSlotNumber:] (in DevToolsCore)
 23   -[XCBlockQueue _processBlocksInThreadSlotNumber:] (in DevToolsCore)
 24   __NSThread__start__ (in Foundation)
 25   _pthread_body (in libsystem_pthread.dylib)
 26   _pthread_body (in libsystem_pthread.dylib)
 27   thread_start (in libsystem_pthread.dylib)

abort() called

Application Specific Signatures:
NSInvalidArgumentException

Application Specific Backtrace 1:
0   CoreFoundation                      0x00007fffbc7ac0db __exceptionPreprocess + 171
1   DVTFoundation                       0x00000001067b8772 DVTFailureHintExceptionPreprocessor + 194
2   libobjc.A.dylib                     0x00007fffd143ea2a objc_exception_throw + 48
3   CoreFoundation                      0x00007fffbc6c796d -[__NSArrayM insertObject:atIndex:] + 1389
4   DevToolsCore                        0x00000001116337af -[XCCompilerSpecificationIBStoryboardLinker _outputNodesForInputNodes:withMacroExpansionScope:] + 662
5   DevToolsCore                        0x0000000111634054 -[XCCompilerSpecificationIBStoryboardLinker doSpecialDependencySetupForCommand:withInputNodes:withMacroExpansionScope:] + 378
6   DevToolsCore                        0x00000001114c24ab -[XCCommandLineToolSpecification createCommandsforInputs:withMacroExpansionScope:] + 6079
7   DevToolsCore                        0x000000011144e0f0 -[PBXTargetBuildContext invokeTask:forInputs:withMacroExpansionScope:optionTable:] + 1890
8   DevToolsCore                        0x000000011156cb26 -[XCDependencyGraphCreationContext invokeTask:forInputs:withMacroExpansionScope:optionTable:] + 109
9   DevToolsCore                        0x00000001114cbc2e -[XCCompilerSpecification computeDependenciesForInputNodes:ofType:variant:architecture:outputDirectory:withMacroExpansionScope:] + 1767
10  DevToolsCore                        0x00000001115b4f53 -[XCBuildRuleDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:withOutputDirectory:parameterMacros:withMacroExpansionScope:] + 3447
11  DevToolsCore                        0x00000001115a5617 -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) _computeDependenciesForBuildFileReference:usingBuildRule:withMacroExpansionScope:processedPaths:] + 3319
12  DevToolsCore                        0x00000001115a7f43 -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:usingBuildRule:withMacroExpansionScope:] + 137
13  DevToolsCore                        0x00000001115a840a -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForBuildFileReference:withMacroExpansionScope:] + 1179
14  DevToolsCore                        0x0000000111592bde -[XCBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForAllBuildFileReferencesWithMacroExpansionScope:] + 2581
15  DevToolsCore                        0x00000001115ab2b3 -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesForAllBuildFileReferencesWithMacroExpansionScope:] + 65
16  DevToolsCore                        0x00000001115ad676 -[XCSourcesBuildPhaseDGSnapshot(DependencyGraphCreation) computeDependenciesWithMacroExpansionScope:] + 9116
17  DevToolsCore                        0x00000001114d1359 -[XCProductTypeSpecification computeDependenciesWithMacroExpansionScope:] + 2113
18  DevToolsCore                        0x000000011158aa09 -[XCNativeTargetDGSnapshot(DependencyGraphCreation) computeDependenciesWithMacroExpansionScope:] + 4140
19  DevToolsCore                        0x000000011144429a -[PBXTargetBuildContext createDependencyGraphWithTargetDGSnapshot:] + 4474
20  DevToolsCore                        0x0000000111460cb3 -[PBXTargetBuildContext(DependencyGraphEvents) dg_setTargetSnapshot:] + 522
21  DevToolsCore                        0x0000000111460336 -[PBXTargetBuildContext(DependencyGraphEvents) processDependencyGraphEvents] + 290
22  DevToolsCore                        0x00000001114c764e -[XCBlockQueue _processNextBlockInThreadSlotNumber:] + 460
23  DevToolsCore                        0x00000001114c79ea -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 300
24  Foundation                          0x00007fffbe165c6d __NSThread__start__ + 1243
25  libsystem_pthread.dylib             0x00007fffd1f37aab _pthread_body + 180
26  libsystem_pthread.dylib             0x00007fffd1f379f7 _pthread_body + 0
27  libsystem_pthread.dylib             0x00007fffd1f371fd thread_start + 13

这就是崩溃的线程，给出的信息很少。

Thread 18 Crashed:
0   libsystem_kernel.dylib          0x00007fffd1e4edd6 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fffd1f3a787 pthread_kill + 90
2   libsystem_c.dylib               0x00007fffd1db4420 abort + 129
3   com.apple.dt.IDEKit             0x0000000107e4562b +[IDEAssertionHandler _handleAssertionWithLogString:assertionSignature:assertionReason:extraBacktrace:] + 1466
4   com.apple.dt.IDEKit             0x0000000107e46bf7 -[IDEAssertionHandler handleUncaughtException:] + 1073
5   com.apple.dt.IDEKit             0x0000000107e46cc3 IDEHandleUncaughtException + 94
6   com.apple.CoreFoundation        0x00007fffbc829d89 __handleUncaughtException + 745
7   libobjc.A.dylib                 0x00007fffd1440b85 _objc_terminate() + 94
8   libc++abi.dylib                 0x00007fffd0933d69 std::__terminate(void (*)()) + 8
9   libc++abi.dylib                 0x00007fffd09339f2 __cxa_rethrow + 99
10  libobjc.A.dylib                 0x00007fffd143ef07 objc_exception_rethrow + 40
11  com.apple.Xcode.DevToolsCore    0x00000001114c78a9 -[XCBlockQueue _processNextBlockInThreadSlotNumber:] + 1063
12  com.apple.Xcode.DevToolsCore    0x00000001114c79ea -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 300
13  com.apple.Foundation            0x00007fffbe165c6d __NSThread__start__ + 1243
14  libsystem_pthread.dylib         0x00007fffd1f37aab _pthread_body + 180
15  libsystem_pthread.dylib         0x00007fffd1f379f7 _pthread_start + 286
16  libsystem_pthread.dylib         0x00007fffd1f371fd thread_start + 13

以下是我为解决这个问题而采取的步骤：

禁用自动索引。

defaults write com.apple.dt.XCode IDEIndexDisable 1

我尝试了很多方法，包括从git从头开始重新创建项目，或者只是清理派生的数据文件夹。

然后我在堆栈跟踪中发现了这一点

XCCompilerSpecificationIBStoryboardLinker

所以，在一个绝望的举动中，我删除了故事板，并再次添加了"add files“。我重新启用了索引，一切都重新开始工作，不再崩溃。

问题是:我的故事板出了什么问题？是什么导致XCode在索引时崩溃？

Answer 1

来自下面的线程：

Xcode 6.1 crash on "Edit scheme"

https://forums.developer.apple.com/thread/19859

试试下面的内容，可能会有帮助：

1.

尝试将您的Mac语言设置切换为英语(System Preferences -> language & Region)，在首选语言中添加英语并将其设置为主要语言。

2.

使用命令：

defaults delete com.apple.dt.Xcode

Answer 2

右键单击文件.xcworkspace >显示包内容

删除xcuserdata文件夹

现在，Xcode将很好地打开项目工作区。