Thank you in advance for your help on the following. I am following the tutorial to the chapter of "Implement Navigation" and got stuck with the Save button. When I click the Save button, Xcode hanged and I have 2 error messages and one sort of warning:
(1) I think this is a warning which doesn't stop the Build and Run but should be addresses. It is :
objc[1575]: Class PLBuildVersion is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices (0x121e40998) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices (0x12162a880). One of the two will be used. Which one is undefined.
(2) SIGABRT in the followings:
Thread 1Queue : com.apple.main-thread (serial)#0
0x000000010ee8edd6 in __pthread_kill ()SIGABRT at line 5 below
libsystem_kernel.dylib`__pthread_kill:
0x10ee8edcc <+0>: movl $0x2000148, %eax ; imm = 0x2000148
0x10ee8edd1 <+5>: movq %rcx, %r10
0x10ee8edd4 <+8>: syscall
-> 0x10ee8edd6 <+10>: jae 0x10ee8ede0 ; <+20>
0x10ee8edd8 <+12>: movq %rax, %rdi
0x10ee8eddb <+15>: jmp 0x10ee87cdf ; cerror_nocancel
0x10ee8ede0 <+20>: retq
0x10ee8ede1 <+21>: nop
0x10ee8ede2 <+22>: nop
0x10ee8ede3 <+23>: nop#11
0x000000010b386c68 in UIApplicationMain ()SIGABRT at line 47 below
UIKit`UIApplicationMain:
0x10b386bc9 <+0>: pushq %rbp
0x10b386bca <+1>: movq %rsp, %rbp
0x10b386bcd <+4>: pushq %r15
0x10b386bcf <+6>: pushq %r14
0x10b386bd1 <+8>: pushq %r13
0x10b386bd3 <+10>: pushq %r12
0x10b386bd5 <+12>: pushq %rbx
0x10b386bd6 <+13>: pushq %rax
0x10b386bd7 <+14>: movq %rcx, %rbx
0x10b386bda <+17>: movq %rsi, -0x30(%rbp)
0x10b386bde <+21>: movl %edi, %r12d
0x10b386be1 <+24>: movq 0xe7f7b8(%rip), %r13 ; (void *)0x000000010aecacb0: objc_retain
0x10b386be8 <+31>: movq %rdx, %rdi
0x10b386beb <+34>: callq *%r13
0x10b386bee <+37>: movq %rax, %r14
0x10b386bf1 <+40>: movq %rbx, %rdi
0x10b386bf4 <+43>: callq *%r13
0x10b386bf7 <+46>: movq %rax, %r15
0x10b386bfa <+49>: leaq 0x11dab6b(%rip), %r13 ; _UIApplicationLinkedOnVersion
0x10b386c01 <+56>: movl (%r13), %eax
0x10b386c05 <+60>: testl %eax, %eax
0x10b386c07 <+62>: jne 0x10b386c17 ; <+78>
0x10b386c09 <+64>: cmpq $-0x1, 0x11d4ab7(%rip) ; WebKitSetIsClassic + 7
0x10b386c11 <+72>: jne 0x10b386c8a ; <+193>
0x10b386c13 <+74>: movl (%r13), %eax
0x10b386c17 <+78>: cmpl $0x20100, %eax ; imm = 0x20100
0x10b386c1c <+83>: jb 0x10b386c42 ; <+121>
0x10b386c1e <+85>: callq 0x10bfaaa8a ; symbol stub for: objc_autoreleasePoolPush
0x10b386c23 <+90>: movq %rax, %r13
0x10b386c26 <+93>: movl %r12d, %edi
0x10b386c29 <+96>: movq -0x30(%rbp), %rsi
0x10b386c2d <+100>: movq %r14, %rdx
0x10b386c30 <+103>: movq %r15, %rcx
0x10b386c33 <+106>: callq 0x10b386ca2 ; _UIApplicationMainPreparations
0x10b386c38 <+111>: movq %r13, %rdi
0x10b386c3b <+114>: callq 0x10bfaaa84 ; symbol stub for: objc_autoreleasePoolPop
0x10b386c40 <+119>: jmp 0x10b386c54 ; <+139>
0x10b386c42 <+121>: movl %r12d, %edi
0x10b386c45 <+124>: movq -0x30(%rbp), %rsi
0x10b386c49 <+128>: movq %r14, %rdx
0x10b386c4c <+131>: movq %r15, %rcx
0x10b386c4f <+134>: callq 0x10b386ca2 ; _UIApplicationMainPreparations
0x10b386c54 <+139>: movq 0x11daa55(%rip), %rdi ; UIApp
0x10b386c5b <+146>: movq 0x11489d6(%rip), %rsi ; "_run"
0x10b386c62 <+153>: callq *0xe7f728(%rip) ; (void *)0x000000010aecdac0: objc_msgSend
0x10b386c68 <+159>: movq 0xe7f729(%rip), %rbx ; (void *)0x000000010aecad20: objc_release
0x10b386c6f <+166>: movq %r15, %rdi
0x10b386c72 <+169>: callq *%rbx
0x10b386c74 <+171>: movq %r14, %rdi
0x10b386c77 <+174>: callq *%rbx
0x10b386c79 <+176>: xorl %eax, %eax
0x10b386c7b <+178>: addq $0x8, %rsp
0x10b386c7f <+182>: popq %rbx
0x10b386c80 <+183>: popq %r12
0x10b386c82 <+185>: popq %r13
0x10b386c84 <+187>: popq %r14
0x10b386c86 <+189>: popq %r15
0x10b386c88 <+191>: popq %rbp
0x10b386c89 <+192>: retq
0x10b386c8a <+193>: leaq 0x11d4a37(%rip), %rdi ; _UIApplicationLinkedOnVersionOnce
0x10b386c91 <+200>: leaq 0xe82d08(%rip), %rsi ; __block_literal_global.1554
0x10b386c98 <+207>: callq 0x10bfab2d6 ; symbol stub for: dispatch_once
0x10b386c9d <+212>: jmp 0x10b386c13 ; <+74>#12
0x000000010a8bbabf in main at /Users/boscolouie/Desktop/Xcode Projects/FoodTracker/FoodTracker/AppDelegate.swift:12"Thread 1:signal SIGABRT" shown after line 12 below
/
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import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?#13
0x000000010eb6068d in start ()"Thread 1:signal SIGABRT" shown after line 3 below
libdyld.dylib`start:
0x10eb6068c <+0>: nop
0x10eb6068d <+1>: movl %eax, %edi
0x10eb6068f <+3>: callq 0x10eb606c6 ; symbol stub for: exit
0x10eb60694 <+8>: hlt#14
0x000000010eb6068d in start ()"Thread 1:signal SIGABRT" shown after line 3 below
libdyld.dylib`start:
0x10eb6068c <+0>: nop
0x10eb6068d <+1>: movl %eax, %edi
0x10eb6068f <+3>: callq 0x10eb606c6 ; symbol stub for: exit
0x10eb60694 <+8>: hltThen there is also the following:
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
(3) I suspect there is a problem in unwindToMealList func because there is an empty circle before the line number on the @IBAction func line as per below codes. Empty circle indicates a broken linkage, but the tutorial doesn't ask me to connect this IBAction to anything.
@IBAction func unwindToMealList(sender: UIStoryboardSegue){
if let sourceViewController = sender.source as? MealViewController, let _ = sourceViewController.meal {
/
let newIndexPath = IndexPath(row: meals.count, section: 0)
tableView.insertRows(at: [newIndexPath], with: .automatic)
}
}Thank you very much for your enlightenment.
