我今天更新了Xcode（Xcode 11.0），现在每次尝试在iPhone（iOS 13.1）上运行任何项目时它都崩溃。
已经尝试过：
清除派生数据
清理库缓存文件夹
卸载xCode并从商店再次下载
重新启动Mac
重新启动iPhone
重新连接iPhone低谷iTunes
奇怪的是Xcode活动没有显示“正在安装应用程序”阶段，它直接进入“在设备上运行应用程序”然后崩溃。在模拟器上运行可以正常工作。
已经在Apple论坛上进行了搜索，并将报告发送给了Apple，但也许我可以做些解决该问题的事情。
错误日志：
Process: Xcode [873]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 11.0 (14936)
Build Info: IDEFrameworks-14936000000000000~3
App Item ID: 497799835
App External ID: 832762837
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Xcode [873]
User ID: 502
Date/Time: 2019-09-25 11:47:10.497 -0300
OS Version: Mac OS X 10.14.6 (18G95)
Report Version: 12
Anonymous UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Time Awake Since Boot: 550 seconds
System Integrity Protection: enabled
Crashed Thread: 16 Dispatch queue: Mutex to protect _hasPerformedWorkerAction
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
com.apple.main-thread
ProductBuildVersion: 11A420a
UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Invalid parameter not satisfying: aString != nil
UserInfo: (null)
Hints:
0: Calling block provided to DVTSyncPerformBlock() here:
0 DVTSyncPerformBlock (in DVTFoundation)
1 -[IDEExecutionRunnableTracker executionWantsHold:withError:] (in IDEFoundation)
2 -[IDERunOperationWorker _startWithRetrying:] (in IDEFoundation)
3 __44-[IDERunOperationWorker _startWithRetrying:]_block_invoke_3 (in IDEFoundation)
4 __48-[DVTDispatchLock_Recursive performLockedBlock:]_block_invoke (in DVTFoundation)
5 _dispatch_client_callout (in libdispatch.dylib)
6 _dispatch_lane_barrier_sync_invoke_and_complete (in libdispatch.dylib)
7 DVTDispatchBarrierSync (in DVTFoundation)
8 -[DVTDispatchLock performLockedBlock:] (in DVTFoundation)
9 -[DVTDispatchLock_Recursive performLockedBlock:] (in DVTFoundation)
10 __44-[IDERunOperationWorker _startWithRetrying:]_block_invoke_2 (in IDEFoundation)
11 __DVT_CALLING_CLIENT_BLOCK__ (in DVTFoundation)
12 __DVTDispatchAfter_block_invoke (in DVTFoundation)
13 _dispatch_client_callout (in libdispatch.dylib)
14 _dispatch_continuation_pop (in libdispatch.dylib)
15 _dispatch_source_invoke (in libdispatch.dylib)
16 _dispatch_continuation_pop (in libdispatch.dylib)
17 _dispatch_async_redirect_invoke (in libdispatch.dylib)
18 _dispatch_root_queue_drain (in libdispatch.dylib)
19 _dispatch_worker_thread2 (in libdispatch.dylib)
20 _pthread_wqthread (in libsystem_pthread.dylib)
21 start_wqthread (in libsystem_pthread.dylib)
Backtrace:
0 __exceptionPreprocess (in CoreFoundation)
1 DVTFailureHintExceptionPreprocessor (in DVTFoundation)
2 objc_exception_throw (in libobjc.A.dylib)
...
...
...
0x7fff63005000 - 0x7fff6300affb libunwind.dylib (35.4) <24A97A67-F017-3CFC-B0D0-6BD0224B1336> /usr/lib/system/libunwind.dylib
0x7fff6300b000 - 0x7fff6303afff libxpc.dylib (1336.261.2) <7DEE2300-6D8E-3C00-9C63-E3E80D56B0C4> /usr/lib/system/libxpc.dylib
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 1
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 430
thread_create: 0
thread_set_state: 21
VM Region Summary:
ReadOnly portion of Libraries: Total=1.1G resident=0K(0%) swapped_out_or_unallocated=1.1G(100%)
Writable regions: Total=1.2G written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=1.2G(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
Accelerate framework 640K 5
Activity Tracing 256K 1
CG backing stores 1160K 2
CG image 1296K 95
CG raster data 56K 6
CoreAnimation 25.8M 164
CoreGraphics 8K 1
CoreImage 776K 81
CoreUI image data 3000K 34
CoreUI image file 688K 14
Dispatch continuations 8192K 1
Foundation 344K 5
Image IO 80K 5
JS JIT generated code 1.0G 3
Kernel Alloc Once 1036K 2
MALLOC 136.4M 116
MALLOC guard page 48K 10
Memory Tag 242 12K 1
Memory Tag 251 64K 3
Performance tool data 8208K 1 not counted in TOTAL below
SQLite page cache 128K 2
STACK GUARD 56.1M 23
Stack 19.2M 23
VM_ALLOCATE 360K 24
WebKit Malloc 1144K 3
__DATA 94.4M 755
__DATA_CONST 8K 1
__FONT_DATA 4K 1
__LINKEDIT 357.4M 236
__TEXT 723.4M 680
__UNICODE 564K 1
libnetwork 1152K 4
mapped file 169.2M 230
shared memory 676K 15
=========== ======= =======
TOTAL 2.6G 2547
Model: MacBookPro12,1, BootROM 186.0.0.0.0, 2 processors, Intel Core i5, 2,9 GHz, 8 GB, SMC 2.28f7
Graphics: kHW_IntelIris6100Item, Intel Iris Graphics 6100, spdisplays_builtin
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1867 MHz, 0x80AD, 0x483943434E4E4E424C54424C41522D4E5544
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1867 MHz, 0x80AD, 0x483943434E4E4E424C54424C41522D4E5544
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x133), Broadcom BCM43xx 1.0 (7.77.61.2 AirPortDriverBrcmNIC-1305.8)
Bluetooth: Version 6.0.14d3, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0512G, 500,28 GB
USB Device: USB 3.0 Bus
USB Device: Bluetooth USB Host Controller
USB Device: iPhone
Thunderbolt Bus: MacBook Pro, Apple Inc., 27.1
alxlives.. 19
因此，我发现此文件夹中有：
~/Library/Developer/Xcode/iOS DeviceSupport
Xcode为它配对的所有物理设备符号创建缓存文件夹。
即使您卸载Xcode，该文件夹仍会保留，即使您安装该软件的其他版本，该缓存也会被重用。
删除文件夹内容后，Xcode会再次下载符号，运行prepare debug support for the device阶段并重置设备连接，从而解决了问题。
因此，我发现此文件夹中有：
~/Library/Developer/Xcode/iOS DeviceSupport
Xcode为它配对的所有物理设备符号创建缓存文件夹。
即使您卸载Xcode，该文件夹仍会保留，即使您安装该软件的其他版本，该缓存也会被重用。
删除文件夹内容后，Xcode会再次下载符号，运行prepare debug support for the device阶段并重置设备连接，从而解决了问题。
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