我使用OS 10.10，Xcode 6 GM，我的项目由swift（＆Objective-C）编写。
该项目可以与Xcode 6-beta7一起运行。
Process: Xcode [7267]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 6.0 (6299)
Build Info: IDEFrameworks-6299000000000000~8
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Xcode [7267]
User ID: 501
Date/Time: 2014-09-10 17:25:38.697 +0800
OS Version: Mac OS X 10.10 (14A343f)
Report Version: 11
Anonymous UUID: 587D71D4-C53F-50BF-625D-CF092416EEDC
Time Awake Since Boot: 12000 seconds
Crashed Thread: 14 Dispatch queue: shared-compile-command-queue :: NSOperation 0x7f887f8aa900 (QOS: UTILITY)
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
ProductBuildVersion: 6A313
ASSERTION FAILURE in /SourceCache/IDELanguageSupport/IDELanguageSupport-6233/XCLanguageSupport/XCSwiftCommandOutputParser.m:222
Details: (subcommand) should not be nil.
Object: <XCSwiftCommandOutputParser: 0x7f887cde4740>
Method: -handleCommandExitedMessage:didSignal:error:
Thread: <NSThread: 0x7f887ff8c130>{number = 14, name = (null)}
Hints: None
Backtrace:
0 0x000000010696cf0a -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit)
1 0x000000010572bbaf _DVTAssertionHandler (in DVTFoundation)
2 0x000000010572be9e _DVTAssertionFailureHandler (in DVTFoundation)
3 0x000000011470d6ce -[XCSwiftCommandOutputParser handleCommandExitedMessage:didSignal:error:] (in XCLanguageSupport)
4 0x000000011470c3b9 -[XCSwiftCommandOutputParser handleMessage:error:] (in XCLanguageSupport)
5 0x000000011470d7d9 -[XCSwiftCommandOutputParser writeBytes:length:] (in XCLanguageSupport)
6 0x0000000110c6cd70 -[XCLineBufferedOutputStream writeBytes:length:] (in DevToolsCore)
7 0x0000000110cfb5a0 -[XCWorkQueueCommandSubprocessInvocation handleOutputBytes:length:] (in DevToolsCore)
8 0x0000000110cfd490 -[XCWorkQueueCommandLocalSubprocessInvocation handleOutputFileDescriptorActivity] (in DevToolsCore)
9 0x0000000110d5abac -[Xcode3BuildTask main] (in DevToolsCore)
10 0x00007fff8ec0b0ac -[__NSOperationInternal _start:] (in Foundation)
11 0x00007fff8ec0acb3 __NSOQSchedule_f (in Foundation)
12 0x00007fff92116d53 _dispatch_client_callout (in libdispatch.dylib)
13 0x00007fff9211a3f7 _dispatch_queue_drain (in libdispatch.dylib)
14 0x00007fff9211bf4c _dispatch_queue_invoke (in libdispatch.dylib)
15 0x00007fff9211978b _dispatch_root_queue_drain (in libdispatch.dylib)
16 0x00007fff92128002 _dispatch_worker_thread3 (in libdispatch.dylib)
17 0x00007fff9a3366cb _pthread_wqthread (in libsystem_pthread.dylib)
18 0x00007fff9a3344a1 start_wqthread (in libsystem_pthread.dylib)
abort() called
Application Specific Signatures:
((subcommand)) != nil
我有同样的问题，我暂时解决了该问题，方法是将产品名称更改为英语。似乎是Xcode GM版本的错误。
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我来说两句