In Xcode 11, more or less every time I paste anything within a storyboard or between storyboards, Xcode just crashes immediately and disappears. This is maddening! I am having to open my storyboards as source code and copy and paste storyboard source code to get anything done.
HELP!!!!
Process: Xcode [12387]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 11.1 (15405)
Build Info: IDEFrameworks-15405000000000000~13
App Item ID: 497799835
App External ID: 832925179
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Xcode [12387]
User ID: 501
Date/Time: 2019-10-08 12:21:15.460 -0700
OS Version: Mac OS X 10.14.6 (18G95)
Report Version: 12
Anonymous UUID: 8967D6E4-F1E4-9D20-1755-68A7BBF92209
Sleep/Wake UUID: 8693B525-37F4-4B51-A912-659C8D348576
Time Awake Since Boot: 380000 seconds
Time Since Wake: 340000 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:
Sending paste: to IBStoryboardOutlineViewController from <NSMenuItem: 0x7f99f6c6e290 Paste>
ProductBuildVersion: 11A1027
ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEInterfaceBuilder/IDEInterfaceBuilder-15400/InterfaceBuilderKit/WidgetIntegration/View/IBViewIntegration.m:2451
Details: There should only be 1 parent of all the constraint items extracted from the pasteboard: {(
)}
Object: <IBUILabel: 0x7f99f34f4360>
Method: -ibDidExtractObjects:fromPasteboard:intoDocument:context:
Thread: <NSThread: 0x7f9a1541b620>{number = 1, name = main}
Hints:
0: Sending paste: to IBStoryboardOutlineViewController from <NSMenuItem: 0x7f99f6c6e290 Paste>
Backtrace:
0 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit)
1 _DVTAssertionHandler (in DVTFoundation)
2 _DVTAssertionFailureHandler (in DVTFoundation)
3 -[NSView(IBViewIntegration) ibDidExtractObjects:fromPasteboard:intoDocument:context:] (in IDEInterfaceBuilderKit)
4 -[IBUIView(IBUIViewIntegration) ibDidExtractObjects:fromPasteboard:intoDocument:context:] (in IDEInterfaceBuilderCocoaTouchIntegration)
5 -[IBDocument ibDidExtractObjects:fromPasteboard:context:] (in IDEInterfaceBuilderKit)
6 -[IBDocument insertObjectsFromPasteboard:ofType:asChildrenOfObject:atIndex:context:finishExtractingObjectsBlock:] (in IDEInterfaceBuilderKit)
7 -[IBDocument insertOrMoveChildrenFromPasteboard:ofType:asChildrenOfObject:atIndex:context:finishExtractingObjectsBlock:] (in IDEInterfaceBuilderKit)
8 -[IBDocument addOrMoveChildrenFromPasteboard:ofType:toObject:context:finishExtractingObjectsBlock:] (in IDEInterfaceBuilderKit)
9 -[IBDocument addOrMoveChildrenFromPasteboard:ofType:toObject:context:] (in IDEInterfaceBuilderKit)
10 IBWrapAndInsertPasteboardObjectsIntoToManyRelation (in IDEInterfaceBuilderKit)
11 IBInsertPasteboardObjectsIntoToManyRelation (in IDEInterfaceBuilderKit)
12 -[NSView(IBViewIntegration) ibAcceptContentsOfPasteboard:inDocument:insertionContext:] (in IDEInterfaceBuilderKit)
13 -[NSView(IBAppKitViewIntegration) ibSwizzledNSViewAcceptContentsOfPasteboard:inDocument:insertionContext:] (in IDEInterfaceBuilderCocoaIntegration)
14 -[IBDFRSupportSwizzledMethodContainer ibDFRSwizzledAcceptContentsOfPasteboard:inDocument:insertionContext:] (in IDEInterfaceBuilderDFRSupport)
15 -[IBUIView(IBUIViewIntegration) ibAcceptContentsOfPasteboard:inDocument:insertionContext:] (in IDEInterfaceBuilderCocoaTouchIntegration)
16 -[IBStoryboardOutlineViewController tellObject:toAcceptPasteboard:withContext:selectNewChildren:] (in IDEInterfaceBuilderKit)
17 -[IBOutlineViewController performPaste] (in IDEInterfaceBuilderKit)
18 -[NSApplication(NSResponder) sendAction:to:from:] (in AppKit)
19 __37-[DVTApplication sendAction:to:from:]_block_invoke.86 (in DVTKit)
20 DVTInvokeWithFailureHint (in DVTFoundation)
21 -[DVTApplication sendAction:to:from:] (in DVTKit)
22 -[NSMenuItem _corePerformAction] (in AppKit)
23 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] (in AppKit)
24 -[NSMenu performKeyEquivalent:] (in AppKit)
25 routeKeyEquivalent (in AppKit)
26 -[NSApplication(NSEvent) sendEvent:] (in AppKit)
27 -[IDEApplication sendEvent:] (in IDEKit)
28 -[NSApplication run] (in AppKit)
29 NSApplicationMain (in AppKit)
30 main (in Xcode)
31 start (in libdyld.dylib)
Performing @selector(paste:) from sender NSMenuItem 0x7f99f6c6e290
abort() called