When opening the link https://developer.apple.com/sample-code/swift/swans-quest/quest-create.zip, do not download the zip file with the Playground Book, and show the error: "The page you are looking for cannot be found ". Haven't left the file available yet? Did anyone get access?
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The macOS Developer app always crash after opening. Someone with the same problem? How can I fix it?
Problem Details and System Configuration:
Process:							 Developer [1396]
Path:									/Applications/Developer.app/Contents/MacOS/Developer
Identifier:						Developer
Version:							 8.2.2 (822.5.2)
Build Info:						WWDCMac_Production-822005000000000~3 (1A133)
App Item ID:					 640199958
App External ID:			 836460907
Code Type:						 X86-64 (Native)
Parent Process:				??? [1]
Responsible:					 Developer [1396]
User ID:							 502
Date/Time:						 2020-06-23 12:02:50.230 -0300
OS Version:						Mac OS X 10.15.4 (19E287)
Report Version:				12
Anonymous UUID:				33084D76-AE55-AB59-B7C5-5669D20B55BC
Time Awake Since Boot: 2900 seconds
System Integrity Protection: enabled
Crashed Thread:				0	Dispatch queue: com.apple.main-thread
Exception Type:				EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:			 0x0000000000000001, 0x0000000000000000
Exception Note:				EXC_CORPSE_NOTIFY
Termination Signal:		Illegal instruction: 4
Termination Reason:		Namespace SIGNAL, Code 0x4
Terminating Process:	 exc handler [1396]
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0	 developer.apple.wwdc-Release	 0x000000010a743124 0x10a6c7000 + 508196
1	 developer.apple.wwdc-Release	 0x000000010a743154 0x10a6c7000 + 508244
2	 com.apple.UIKitCore					 0x00007fff701923ff -[UIViewController _setViewAppearState:isAnimating:] + 691
3	 com.apple.UIKitCore					 0x00007fff7027a06b -[UINavigationController viewDidAppear:] + 175
4	 com.apple.UIKitCore					 0x00007fff701923ff -[UIViewController _setViewAppearState:isAnimating:] + 691
5	 com.apple.UIKitCore					 0x00007fff702c5ebc __64-[UIViewController viewDidMoveToWindow:shouldAppearOrDisappear:]_block_invoke + 42
6	 com.apple.UIKitCore					 0x00007fff702c5e48 -[UIViewController _executeAfterAppearanceBlock] + 75
7	 com.apple.UIKitCore					 0x00007fff700db13e _runAfterCACommitDeferredBlocks + 696
8	 com.apple.UIKitCore					 0x00007fff700da9cb _cleanUpAfterCAFlushAndRunDeferredBlocks + 248
9	 com.apple.UIKitCore					 0x00007fff700da7af _afterCACommitHandler + 85
10	com.apple.CoreFoundation			 0x00007fff2f8354f5 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 23
11	com.apple.CoreFoundation			 0x00007fff2f835427 __CFRunLoopDoObservers + 457
12	com.apple.CoreFoundation			 0x00007fff2f834039 CFRunLoopRunSpecific + 521
13	com.apple.HIToolbox					 0x00007fff2e467abd RunCurrentEventLoopInMode + 292
14	com.apple.HIToolbox					 0x00007fff2e4677d5 ReceiveNextEventCommon + 584
15	com.apple.HIToolbox					 0x00007fff2e467579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
16	com.apple.AppKit							 0x00007fff2cab2c99 _DPSNextEvent + 883
17	com.apple.AppKit							 0x00007fff2cab14e0 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
18	com.apple.AppKit							 0x00007fff2caa31ee -[NSApplication run] + 658
19	com.apple.AppKit							 0x00007fff2ca74ff6 NSApplicationMain + 777
20	com.apple.AppKit							 0x00007fff2cd96a85 _NSApplicationMainWithInfoDictionary + 16
21	com.apple.UIKitMacHelper			 0x00007fff609dfe00 UINSApplicationMain + 322
22	com.apple.UIKitCore					 0x00007fff700c66ff UIApplicationMain + 2130
23	developer.apple.wwdc-Release	 0x000000010a6c9667 0x10a6c7000 + 9831
24	libdyld.dylib								 0x00007fff6977ccc9 start + 1
Will live preview in SwiftUI and the Xcode 11 works on MacBook Pro Retina 2012 perfectly well? The MacBook Pro 2012 still great in 2019? I'm thinking about buying me one. I have a low budget and I need a MacBook Pro that will work for 3-5 years from now, being me a ”Pro” user.