Following Your Workaround. I had update to BETA 6 again.
Now, Xcode 7 can load Storyboard. But When load *.swift will be crash. This is error:
Process: Xcode [2872]
Path: /Applications/Xcode-beta.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 7.0 (8178.7)
Build Info: IDEFrameworks-8178007000000000~3
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Xcode [2872]
User ID: 501
Date/Time: 2015-08-05 23:06:53.996 +0800
OS Version: Mac OS X 10.11 (15A244d)
Report Version: 11
Anonymous UUID: 93B1F982-AD44-F234-9A2D-7D1A5D89FF46
Time Awake Since Boot: 3100 seconds
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
ProductBuildVersion: 7A165t
ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEInterfaceBuilderCocoaTouch/IDEInterfaceBuilderCocoaTouch-8135.1/InterfaceBuilder/RemoteToolCommunication/IBObjectMarshalling.m:694
Details: Failed to launch remote tool: Encountered an error communicating with Interface Builder WatchKit Tool. (Failure reason: Interface Builder WatchKit Tool (2919) failed to launch and exited with signal 11): Failed to communicate with Interface Builder (Failure reason: The agent crashed: /Applications/Xcode-beta.app/Contents/Developer/Platforms/WatchSimulator.platform/Developer/Library/PrivateFrameworks/IBFoundation.framework/IBFoundation
)
Object: <IBClassValueMarshaller>
Method: +valueForKeyPath:ofClassNamed:usingMarshaller:targetRuntime:context:explicitScaleFactor:diagnosticsBlock:
Thread: <NSThread: 0x7fcdb8707180>{number = 1, name = main}
Hints: None
Backtrace:
0 0x0000000105a6a00d -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit)
1 0x000000010465d23d _DVTAssertionHandler (in DVTFoundation)
2 0x000000010465d454 _DVTAssertionFailureHandler (in DVTFoundation)
3 0x00000001133686dc (in IDEInterfaceBuilderCocoaTouchIntegration)
4 0x0000000113368287 (in IDEInterfaceBuilderCocoaTouchIntegration)
5 0x000000011334bd07 (in IDEInterfaceBuilderCocoaTouchIntegration)
6 0x000000011334c429 (in IDEInterfaceBuilderCocoaTouchIntegration)
7 0x0000000104697ff8 __DVTDispatchAsync_block_invoke (in DVTFoundation)
8 0x00007fff8f1b05cf _dispatch_call_block_and_release (in libdispatch.dylib)
9 0x00007fff8f1ac409 _dispatch_client_callout (in libdispatch.dylib)
10 0x00007fff8f1bdbd2 _dispatch_main_queue_callback_4CF (in libdispatch.dylib)
11 0x00007fff9616b5c9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ (in CoreFoundation)
12 0x00007fff9612657d __CFRunLoopRun (in CoreFoundation)
13 0x00007fff96125b78 CFRunLoopRunSpecific (in CoreFoundation)
14 0x00007fff8c2243e5 RunCurrentEventLoopInMode (in HIToolbox)
15 0x00007fff8c22417b ReceiveNextEventCommon (in HIToolbox)
16 0x00007fff8c223fbb _BlockUntilNextEventMatchingListInModeWithFilter (in HIToolbox)
17 0x00007fff992c9ae7 _DPSNextEvent (in AppKit)
18 0x00007fff99695ac5 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (in AppKit)
19 0x0000000104c1db50 -[DVTApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in DVTKit)
20 0x00007fff992bf986 -[NSApplication run] (in AppKit)
21 0x00007fff99241e9a NSApplicationMain (in AppKit)
22 0x00007fff902f15ad start (in libdyld.dylib)
abort() called
Application Specific Signatures:
tool
Global Trace Buffer (reverse chronological seconds):
20.391587 CFNetwork 0x00007fff98c55d6b TCP Conn 0x7fcdbaed6030 SSL Handshake DONE
20.864569 CFNetwork 0x00007fff98c55c47 TCP Conn 0x7fcdbaed6030 starting SSL negotiation
20.866020 CFNetwork 0x00007fff98c544eb TCP Conn 0x7fcdbaed6030 complete. fd: 36, err: 0
20.867606 CFNetwork 0x00007fff98c53a9d TCP Conn 0x7fcdbaed6030 event 1. err: 0
21.098761 CFNetwork 0x00007fff98c5327b TCP Conn 0x7fcdbaed6030 started
21.144685 CFNetwork 0x00007fff98dd5f1d Creating default cookie storage with process/bundle identifier
21.144685 CFNetwork 0x00007fff98dd5eb5 Faulting in CFHTTPCookieStorage singleton
21.144685 CFNetwork 0x00007fff98c39d41 Faulting in NSHTTPCookieStorage singleton
21.146818 CFNetwork 0x00007fff98cf7276 NSURLConnection finished with error - code -1100
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff8f9d10ae __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff92169665 pthread_kill + 90
2 libsystem_c.dylib 0x00007fff98fc53fb abort + 129
3 com.apple.dt.IDEKit 0x0000000105a69c04 +[IDEAssertionHandler _handleAssertionWithLogString:assertionSignature:assertionReason:extraBacktrace:] + 1481
4 com.apple.dt.IDEKit 0x0000000105a6a1e4 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] + 1202
5 com.apple.dt.DVTFoundation 0x000000010465d23d _DVTAssertionHandler + 562
6 com.apple.dt.DVTFoundation 0x000000010465d454 _DVTAssertionFailureHandler + 407
7 com.apple.dt.IDE.IDEInterfaceBuilderCocoaTouchIntegration 0x00000001133686dc 0x113316000 + 337628
8 com.apple.dt.IDE.IDEInterfaceBuilderCocoaTouchIntegration 0x0000000113368287 0x113316000 + 336519
9 com.apple.dt.IDE.IDEInterfaceBuilderCocoaTouchIntegration 0x000000011334bd07 0x113316000 + 220423
10 com.apple.dt.IDE.IDEInterfaceBuilderCocoaTouchIntegration 0x000000011334c429 0x113316000 + 222249
11 com.apple.dt.DVTFoundation 0x0000000104697ff8 __DVTDispatchAsync_block_invoke + 69
12 libdispatch.dylib 0x00007fff8f1b05cf _dispatch_call_block_and_release + 12
13 libdispatch.dylib 0x00007fff8f1ac409 _dispatch_client_callout + 8
14 libdispatch.dylib 0x00007fff8f1bdbd2 _dispatch_main_queue_callback_4CF + 1685
15 com.apple.CoreFoundation 0x00007fff9616b5c9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
16 com.apple.CoreFoundation 0x00007fff9612657d __CFRunLoopRun + 1949
17 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
18 com.apple.HIToolbox 0x00007fff8c2243e5 RunCurrentEventLoopInMode + 235
19 com.apple.HIToolbox 0x00007fff8c22417b ReceiveNextEventCommon + 432
20 com.apple.HIToolbox 0x00007fff8c223fbb _BlockUntilNextEventMatchingListInModeWithFilter + 71
21 com.apple.AppKit 0x00007fff992c9ae7 _DPSNextEvent + 1076
22 com.apple.AppKit 0x00007fff99695ac5 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 440
23 com.apple.dt.DVTKit 0x0000000104c1db50 -[DVTApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 247
24 com.apple.AppKit 0x00007fff992bf986 -[NSApplication run] + 682
25 com.apple.AppKit 0x00007fff99241e9a NSApplicationMain + 1176
26 libdyld.dylib 0x00007fff902f15ad start + 1
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff8f9d20a2 kevent_qos + 10
1 libdispatch.dylib 0x00007fff8f1b150c _dispatch_mgr_invoke + 216
2 libdispatch.dylib 0x00007fff8f1b1183 _dispatch_mgr_thread + 52
Thread 2:
0 libsystem_kernel.dylib 0x00007fff8f9d178a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff921677c9 _pthread_wqthread + 1283
2 libsystem_pthread.dylib 0x00007fff92165409 start_wqthread + 13
Thread 3:
0 libsystem_kernel.dylib 0x00007fff8f9d178a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff921677c9 _pthread_wqthread + 1283
2 libsystem_pthread.dylib 0x00007fff92165409 start_wqthread + 13
Thread 4:
0 libsystem_kernel.dylib 0x00007fff8f9cbc96 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8f9cb0d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff96126e64 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9612632c __CFRunLoopRun + 1356
4 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
5 com.apple.Foundation 0x00007fff9d3a052d -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 270
6 com.apple.DTDeviceKitBase 0x000000010df940aa -[DTDKRemoteDeviceDataListener listenerThreadImplementation] + 1103
7 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
8 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
9 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
10 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 5:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff8f9d1222 __select + 10
1 com.apple.CoreFoundation 0x00007fff96172a5a __CFSocketManager + 762
2 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
4 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 6:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff8f9cbc96 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8f9cb0d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff96126e64 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9612632c __CFRunLoopRun + 1356
4 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
5 com.apple.CFNetwork 0x00007fff98c3cf4e +[NSURLConnection(Loader) _resourceLoadLoop:] + 412
6 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
7 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
9 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 7:: com.apple.NSEventThread
0 libsystem_kernel.dylib 0x00007fff8f9cbc96 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8f9cb0d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff96126e64 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9612632c __CFRunLoopRun + 1356
4 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
5 com.apple.AppKit 0x00007fff99388599 _NSEventThread + 149
6 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
7 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
8 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 8:: DYMobileDeviceManager
0 libsystem_kernel.dylib 0x00007fff8f9cbc96 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8f9cb0d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff96126e64 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9612632c __CFRunLoopRun + 1356
4 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
5 com.apple.Foundation 0x00007fff9d3a052d -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 270
6 com.apple.Foundation 0x00007fff9d412290 -[NSRunLoop(NSRunLoop) run] + 74
7 com.apple.GPUToolsMobileFoundation 0x0000000118902901 -[DYMobileDeviceManager _deviceNotificationThread:] + 134
8 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
9 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
10 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
11 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 9:
0 libsystem_kernel.dylib 0x00007fff8f9cbc96 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8f9cb0d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff96126e64 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9612632c __CFRunLoopRun + 1356
4 com.apple.CoreFoundation 0x00007fff96125b78 CFRunLoopRunSpecific + 296
5 com.apple.CoreFoundation 0x00007fff961e8061 CFRunLoopRun + 97
6 com.apple.DebugSymbols 0x00007fff8ffa769a SpotlightQueryThread(void*) + 346
7 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
9 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 10:
0 libsystem_kernel.dylib 0x00007fff8f9d178a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff921677c9 _pthread_wqthread + 1283
2 libsystem_pthread.dylib 0x00007fff92165409 start_wqthread + 13
Thread 11:
0 libsystem_kernel.dylib 0x00007fff8f9d178a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff921677c9 _pthread_wqthread + 1283
2 libsystem_pthread.dylib 0x00007fff92165409 start_wqthread + 13
Thread 12:
0 libsystem_kernel.dylib 0x00007fff8f9d0f5e __psynch_cvwait + 10
1 libsystem_pthread.dylib 0x00007fff921681f0 _pthread_cond_wait + 767
2 com.apple.Xcode.DevToolsCore 0x000000010da7ec4a -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 450
3 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
4 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
6 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 13:
0 libsystem_kernel.dylib 0x00007fff8f9d0f5e __psynch_cvwait + 10
1 libsystem_pthread.dylib 0x00007fff921681f0 _pthread_cond_wait + 767
2 com.apple.Xcode.DevToolsCore 0x000000010da7ec4a -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 450
3 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
4 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
6 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 14:
0 libsystem_kernel.dylib 0x00007fff8f9d0f5e __psynch_cvwait + 10
1 libsystem_pthread.dylib 0x00007fff921681f0 _pthread_cond_wait + 767
2 com.apple.Xcode.DevToolsCore 0x000000010da7ec4a -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 450
3 com.apple.Foundation 0x00007fff9d4ec1ca __NSThread__start__ + 1351
4 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
6 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 15:
0 libsystem_kernel.dylib 0x00007fff8f9d12b2 __semwait_signal + 10
1 libsystem_c.dylib 0x00007fff98fe6af5 nanosleep + 199
2 com.apple.CoreSymbolication 0x00007fff9cd80b5f 0x7fff9cd6e000 + 76639
3 libsystem_pthread.dylib 0x00007fff92167cb3 _pthread_body + 131
4 libsystem_pthread.dylib 0x00007fff92167c30 _pthread_start + 168
5 libsystem_pthread.dylib 0x00007fff92165419 thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000000000000006 rcx: 0x00007fff5b7c6be8 rdx: 0x0000000000000000
rdi: 0x000000000000160b rsi: 0x0000000000000006 rbp: 0x00007fff5b7c6c10 rsp: 0x00007fff5b7c6be8
r8: 0x00007fcdbc8d3b32 r9: 0x0000000000000000 r10: 0x0000000008000000 r11: 0x0000000000000206
r12: 0x00007fff8fb071d0 r13: 0x00007fcdbc8a9bd0 r14: 0x00007fff7d2f5000 r15: 0x00007fcdb8707600
rip: 0x00007fff8f9d10ae rfl: 0x0000000000000206 cr2: 0x00007fff7e18f038
Logical CPU: 0
Error Code: 0x02000148
Trap Number: 133
PLEASE HELP ME. THANKS.