# 05 - Filtering Operators - Starter Project - Clicking on storyboard crashes on Xcode 8.2.1 **URL:** \ **Category:** RxSwift\ **Created:** [April 5, 2017, 4:08pm UTC](https://forums.kodeco.com/t/05-filtering-operators-starter-project-clicking-on-storyboard-crashes-on-xcode-8-2-1/27995 "2017-04-05T16:08:26Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![srpoucse](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/srpoucse/32/62803_2.png) [@srpoucse](https://forums.kodeco.com/u/srpoucse)\ **Post date:** [April 5, 2017, 4:08pm UTC](https://forums.kodeco.com/t/05-filtering-operators-starter-project-clicking-on-storyboard-crashes-on-xcode-8-2-1/27995/1 "2017-04-05T16:08:26Z")
Hey Guys, Clicking on storyboard crashes on Xcode 8.2.1. Here’s the crash report - Let me know if anyone of you has faced this issue? Process: Xcode [42672] Path: /Applications/Xcode-8.2.1.app/Contents/MacOS/Xcode Identifier: com.apple.dt.Xcode Version: 8.2.1 (11766.1) Build Info: IDEFrameworks-11766001000000000~5 App Item ID: 497799835 App External ID: 820169454 Code Type: X86-64 (Native) Parent Process: ??? [1] Responsible: Xcode [42672] User ID: 94343 Date/Time: 2017-04-05 12:04:26.858 -0400 OS Version: Mac OS X 10.12.3 (16D32) Report Version: 12 Anonymous UUID: 380A26BC-5308-0FEA-0D6F-750DC11D5A2A Sleep/Wake UUID: BEC7927C-E8A2-4549-894F-24216B984F57 Time Awake Since Boot: 4700 seconds Time Since Wake: 3600 seconds System Integrity Protection: enabled 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: 8C1002 ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEFrameworks/IDEFrameworks-11766.1/IDEKit/Application/IDEDocumentController.m:457 Details: (navigableItem) should not be nil. Object: Method: +retainedEditorDocumentForNavigableItem:forUseWithWorkspaceDocument:error: Thread: \{number = 1, name = main} Hints: None Backtrace: 0 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit) 1 \_DVTAssertionHandler (in DVTFoundation) 2 \_DVTAssertionFailureHandler (in DVTFoundation) 3 +[IDEDocumentController retainedEditorDocumentForNavigableItem:forUseWithWorkspaceDocument:error:] (in IDEKit) 4 -[IDEUtilityArea computeSelectedDocumentsForNavigables:] (in IDEKit) 5 -[IDEUtilityArea \_rebuildStackWithNavigableItems:] (in IDEKit) 6 -[IDEUtilityArea \_rebuildCategoriesAndStack] (in IDEKit) 7 -[DVTDelayedInvocation runBlock:] (in DVTFoundation) 8 \_\_NSFirePerformWithOrder (in Foundation) 9 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_AN\_OBSERVER\_CALLBACK\_FUNCTION** (in CoreFoundation) 10 \_\_CFRunLoopDoObservers (in CoreFoundation) 11 \_\_CFRunLoopRun (in CoreFoundation) 12 CFRunLoopRunSpecific (in CoreFoundation) 13 RunCurrentEventLoopInMode (in HIToolbox) 14 ReceiveNextEventCommon (in HIToolbox) 15 \_BlockUntilNextEventMatchingListInModeWithFilter (in HIToolbox) 16 \_DPSNextEvent (in AppKit) 17 -[NSApplication(NSEvent) \_nextEventMatchingEventMask:untilDate:inMode:dequeue:] (in AppKit) 18 -[DVTApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in DVTKit) 19 -[NSApplication run] (in AppKit) 20 NSApplicationMain (in AppKit) 21 start (in libdyld.dylib) abort() called Application Specific Signatures: ((navigableItem)) != nil Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem\_kernel.dylib 0x00007fff91d0edd6 \_\_pthread\_kill + 10 1 libsystem\_pthread.dylib 0x00007fff91dfa787 pthread\_kill + 90 2 libsystem\_c.dylib 0x00007fff91c74420 abort + 129 3 com.apple.dt.IDEKit 0x00000001098b11db +[IDEAssertionHandler \_handleAssertionWithLogString:assertionSignature:assertionReason:extraBacktrace:] + 1466 4 com.apple.dt.IDEKit 0x00000001098b186f -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] + 1204 5 com.apple.dt.DVTFoundation 0x00000001077b7f3e \_DVTAssertionHandler + 541 6 com.apple.dt.DVTFoundation 0x00000001077b8158 \_DVTAssertionFailureHandler + 411 7 com.apple.dt.IDEKit 0x0000000109bbd5a7 +[IDEDocumentController retainedEditorDocumentForNavigableItem:forUseWithWorkspaceDocument:error:] + 760 8 com.apple.dt.IDEKit 0x00000001099777e9 -[IDEUtilityArea computeSelectedDocumentsForNavigables:] + 398 9 com.apple.dt.IDEKit 0x000000010997906a -[IDEUtilityArea \_rebuildStackWithNavigableItems:] + 1599 10 com.apple.dt.IDEKit 0x000000010997a4c9 -[IDEUtilityArea \_rebuildCategoriesAndStack] + 876 11 com.apple.dt.DVTFoundation 0x000000010758498b -[DVTDelayedInvocation runBlock:] + 257 12 com.apple.Foundation 0x00007fff7e152a7d \_\_NSFirePerformWithOrder + 368 13 com.apple.CoreFoundation 0x00007fff7c6a8397 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_AN\_OBSERVER\_CALLBACK\_FUNCTION** + 23 14 com.apple.CoreFoundation 0x00007fff7c6a8307 \_\_CFRunLoopDoObservers + 391 15 com.apple.CoreFoundation 0x00007fff7c688f39 \_\_CFRunLoopRun + 873 16 com.apple.CoreFoundation 0x00007fff7c688974 CFRunLoopRunSpecific + 420 17 com.apple.HIToolbox 0x00007fff7bc14a5c RunCurrentEventLoopInMode + 240 18 com.apple.HIToolbox 0x00007fff7bc14799 ReceiveNextEventCommon + 184 19 com.apple.HIToolbox 0x00007fff7bc146c6 \_BlockUntilNextEventMatchingListInModeWithFilter + 71 20 com.apple.AppKit 0x00007fff7a1ba5b4 \_DPSNextEvent + 1120 21 com.apple.AppKit 0x00007fff7a934d6b -[NSApplication(NSEvent) \_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2789 22 com.apple.dt.DVTKit 0x0000000107d60eaf -[DVTApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 396 23 com.apple.AppKit 0x00007fff7a1aef35 -[NSApplication run] + 926 24 com.apple.AppKit 0x00007fff7a179850 NSApplicationMain + 1237 25 libdyld.dylib 0x00007fff91be0255 start + 1 External Modification Summary: Calls made by other processes targeting this process: task\_for\_pid: 0 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: 13832 thread\_create: 0 thread\_set\_state: 12773 VM Region Summary: ReadOnly portion of Libraries: Total=656.5M resident=0K(0%) swapped\_out\_or\_unallocated=656.5M(100%) Writable regions: Total=1.9G written=0K(0%) resident=0K(0%) swapped\_out=0K(0%) unallocated=1.9G(100%) ``` VIRTUAL REGION ``` REGION TYPE SIZE COUNT (non-coalesced) =========== ======= ======= Accelerate framework 512K 5 Activity Tracing 256K 2 CG backing stores 165.8M 7 CG image 1432K 83 CG raster data 12K 2 CoreAnimation 362.8M 82 CoreImage 140K 15 CoreServices 252K 2 CoreUI image data 4348K 23 CoreUI image file 256K 9 Dispatch continuations 16.0M 2 Foundation 40K 6 Image IO 284K 18 JS JIT generated code 8K 3 JS JIT generated code (reserved) 1.0G 2 reserved VM address space (unallocated) Kernel Alloc Once 8K 2 MALLOC 345.5M 54 MALLOC guard page 48K 10 Memory Tag 242 12K 2 Memory Tag 251 28K 3 SQLite page cache 128K 3 STACK GUARD 56.1M 38 Stack 26.3M 38 Swift metadata 36K 3 VM\_ALLOCATE 148K 27 WebKit Malloc 2068K 8 \_\_DATA 68.0M 561 \_\_GLSLBUILTINS 2588K 2 \_\_IMAGE 528K 2 \_\_LINKEDIT 169.8M 271 \_\_TEXT 487.7M 535 \_\_UNICODE 556K 2 mapped file 228.9M 73 shared memory 16.4M 15 =========== ======= ======= TOTAL 2.9G 1876 TOTAL, minus reserved VM space 1.9G 1876 Model: MacBookPro13,3, BootROM MBP133.0226.B11, 4 processors, Intel Core i7, 2.7 GHz, 16 GB, SMC 2.38f6 Graphics: kHW\_IntelHDGraphics530Item, Intel HD Graphics 530, Built-In Graphics: kHW\_AMDRadeonPro460Item, AMD Radeon Pro 460, PCIe, 4096 MB Memory Module: BANK 0/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320 Memory Module: BANK 1/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320 AirPort: spairport\_wireless\_card\_type\_airport\_extreme (0x14E4, 0x15A), Broadcom BCM43xx 1.0 (7.21.171.68.1a5) Bluetooth: Version 5.0.3f1, 3 services, 17 devices, 1 incoming serial ports Network Service: Wi-Fi, AirPort, en0 USB Device: USB 3.0 Bus USB Device: iBridge Thunderbolt Bus: MacBook Pro, Apple Inc., 15.8 Thunderbolt Bus: MacBook Pro, Apple Inc., 15.8