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ios – Why calling a dialog with a struct drops this exception?
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I am making an attempt to redirect the output of this API Name decoded in a struct however when I attempt to use the info to create a dialog it provides me this bizarre exception. As you’ll be able to see, the API returns knowledge however solely once I create the dialog I see this exception. Are you able to assist me?
Code:
struct rspServerInfo: Codable{
let okay: Bool
let information: String
}
@IBAction func backendDetails(_ sender: Any) {
guard let url = URL(string: "http://(hostname):(port)/STOInfo/ServerInfo")else{
return
}
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("utility/json", forHTTPHeaderField: "Content material-Sort")
let physique: [String: AnyHashable] = [
"username": username,
"password": password,
]
request.httpBody = attempt? JSONSerialization.knowledge(withJSONObject: physique, choices: .fragmentsAllowed)
let job = URLSession.shared.dataTask(with: request) {knowledge, _, error in
guard let knowledge=knowledge, error == nil else{
return
}
do{
let response = attempt JSONDecoder().decode(rspServerInfo.self, from: knowledge)
print("SUCCESS: (response)")
let dialogMessage = UIAlertController(title: "Backend particulars", message: response.information, preferredStyle: .alert)
let okay = UIAlertAction(title: "OK", model: .default, handler: { (motion) -> Void in
print("Okay button tapped")
})
dialogMessage.addAction(okay)
self.current(dialogMessage, animated: true, completion: nil)
}
catch{
print(error)
let dialogMessage = UIAlertController(title: "Backend particulars", message: "Error retreiving.", preferredStyle: .alert)
let okay = UIAlertAction(title: "OK", model: .default, handler: { (motion) -> Void in
print("Okay button tapped")
})
dialogMessage.addAction(okay)
self.current(dialogMessage, animated: true, completion: nil)
}
}
job.resume()
}
Exception:
SUCCESS: rspServerInfo(okay: true, information: “STO Backend alpha 1.0”)
2022-04-13 18:13:05.599263+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.600031+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.604952+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.605543+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.605700+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.605882+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.606270+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.606668+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.606785+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.606909+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.607200+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.607559+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.608617+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.609164+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.609516+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.609899+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.610557+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.610983+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.611178+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.624518+0200 ServiceTOOLS Management[1843:69401] [Animation] +[UIView setAnimationsEnabled:] being referred to as from a background thread. Performing any operation from a background thread on UIView or a subclass isn’t supported and will end in surprising and insidious conduct. hint=(
0 UIKitCore 0x00000001843d8514 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 18552084
1 libdispatch.dylib 0x000000010077dfc8 _dispatch_client_callout + 16
2 libdispatch.dylib 0x000000010077f934 dispatch_once_callout + 80
3 UIKitCore 0x0000000183389c74 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1453172
4 UIKitCore 0x00000001837ce078 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5927032
5 UIKitCore 0x00000001834f5424 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2941988
6 UIKitCore 0x00000001837e7f34 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 6033204
7 UIKitCore 0x000000018382dba4 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 6319012
8 UIKitCore 0x0000000183882b20 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 6667040
9 UIKitCore 0x00000001837390cc E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5316812
10 UIKitCore 0x00000001832516d4 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 173780
11 UIKitCore 0x000000018335a524 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1258788
12 UIKitCore 0x000000018376fd74 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5541236
13 UIKitCore 0x000000018379541c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5694492
14 UIKitCore 0x0000000183617a20 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 4131360
15 UIKitCore 0x000000018376b980 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5523840
16 UIKitCore 0x00000001833c3a44 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1690180
17 UIKitCore 0x00000001833987c8 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1513416
18 UIKitCore 0x000000018355b0b0 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3358896
19 UIKitCore 0x000000018360f4bc E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 4097212
20 UIKitCore 0x00000001836c9c0c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 4860940
21 UIKitCore 0x00000001834cb638 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2770488
22 UIKitCore 0x000000018346c5c8 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2381256
23 UIKitCore 0x00000001835d289c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3848348
24 UIKitCore 0x00000001834eeea4 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2916004
25 ServiceTOOLS Management 0x0000000100435320 $s20ServiceTOOLS_Control14ViewControllerC14backendDetailsyyypFy10Foundation4DataVSg_So13NSURLResponseCSgs5Error_pSgtcfU + 1072
26 ServiceTOOLS Management 0x0000000100435854 $s10Foundation4DataVSgSo13NSURLResponseCSgs5Error_pSgIegggg_So6NSDataCSgAGSo7NSErrorCSgIeyByyy_TR + 268
27 CFNetwork 0x00000001816ebb9c CFURLRequestSetMainDocumentURL + 2496
28 CFNetwork 0x00000001816fc210 _CFNetworkErrorCopyLocalizedDescriptionWithHostname + 11296
29 libdispatch.dylib 0x000000010077c700 _dispatch_call_block_and_release + 24
30 libdispatch.dylib 0x000000010077dfc8 _dispatch_client_callout + 16
31 libdispatch.dylib 0x0000000100785150 _dispatch_lane_serial_drain + 684
32 libdispatch.dylib 0x0000000100785e10 _dispatch_lane_invoke + 484
33 libdispatch.dylib 0x000000010079163c _dispatch_workloop_worker_thread + 852
34 libsystem_pthread.dylib 0x00000001dc87de10 _pthread_wqthread + 284
35 libsystem_pthread.dylib 0x00000001dc87d93c start_wqthread + 8
)
2022-04-13 18:13:05.636837+0200 ServiceTOOLS Management[1843:69401] [Assert] Unsupported use of UIKit view-customization API off the primary thread. -setHasDimmingView: despatched to <_UIAlertControllerView: 0x12bd46690; body = (0 0; 320 568); layer = <CALayer: 0x2800dbc80>>
2022-04-13 18:13:05.637270+0200 ServiceTOOLS Management[1843:69401] [Assert] Unsupported use of UIKit view-customization API off the primary thread. -setShouldHaveBackdropView: despatched to <_UIAlertControllerView: 0x12bd46690; body = (0 0; 320 568); layer = <CALayer: 0x2800dbc80>>
2022-04-13 18:13:05.637433+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.637616+0200 ServiceTOOLS Management[1843:69401] [Assert] Unsupported use of UIKit view-customization API off the primary thread. -setAlignsToKeyboard: despatched to <UIAlertControllerView: 0x12bd46690; body = (0 0; 320 568); layer = <CALayer: 0x2800dbc80>>
2022-04-13 18:13:05.640311+0200 ServiceTOOLS Management[1843:69401] [Assert] Can’t be referred to as with asCopy = NO on non-main thread.
2022-04-13 18:13:05.645960+0200 ServiceTOOLS Management[1843:69401] This utility is modifying the autolayout engine from a background thread after the engine was accessed from the primary thread. This could result in engine corruption and bizarre crashes.
Stack:(
0 CoreAutoLayout 0x0000000198f94f20 E21B6C11-F8B8-3259-8A95-9836F586EA21 + 20256
1 CoreAutoLayout 0x0000000198f97b7c E21B6C11-F8B8-3259-8A95-9836F586EA21 + 31612
2 UIKitCore 0x000000018359caf4 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3627764
3 UIKitCore 0x000000018353b724 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3229476
4 UIKitCore 0x000000018370f810 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5146640
5 UIKitCore 0x000000018331a394 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 996244
6 UIKitCore 0x000000018331a084 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 995460
7 UIKitCore 0x0000000183318a00 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 989696
8 UIKitCore 0x00000001836f7dac E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5049772
9 UIKitCore 0x00000001838530d0 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 6471888
10 UIKitCore 0x000000018376ba8c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 5524108
11 UIKitCore 0x00000001833c3a44 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1690180
12 UIKitCore 0x00000001833987c8 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 1513416
13 UIKitCore 0x000000018355b0b0 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3358896
14 UIKitCore 0x000000018360f4bc E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 4097212
15 UIKitCore 0x00000001836c9c0c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 4860940
16 UIKitCore 0x00000001834cb638 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2770488
17 UIKitCore 0x000000018346c5c8 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2381256
18 UIKitCore 0x00000001835d289c E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 3848348
19 UIKitCore 0x00000001834eeea4 E9BCC2B0-AD59-3D23-87B4-495ABEDF5730 + 2916004
20 ServiceTOOLS Management 0x0000000100435320 $s20ServiceTOOLS_Control14ViewControllerC14backendDetailsyyypFy10Foundation4DataVSg_So13NSURLResponseCSgs5Error_pSgtcfU + 1072
21 ServiceTOOLS Management 0x0000000100435854 $s10Foundation4DataVSgSo13NSURLResponseCSgs5Error_pSgIegggg_So6NSDataCSgAGSo7NSErrorCSgIeyByyy_TR + 268
22 CFNetwork 0x00000001816ebb9c CFURLRequestSetMainDocumentURL + 2496
23 CFNetwork 0x00000001816fc210 _CFNetworkErrorCopyLocalizedDescriptionWithHostname + 11296
24 libdispatch.dylib 0x000000010077c700 _dispatch_call_block_and_release + 24
25 libdispatch.dylib 0x000000010077dfc8 _dispatch_client_callout + 16
26 libdispatch.dylib 0x0000000100785150 _dispatch_lane_serial_drain + 684
27 libdispatch.dylib 0x0000000100785e10 _dispatch_lane_invoke + 484
28 libdispatch.dylib 0x000000010079163c _dispatch_workloop_worker_thread + 852
29 libsystem_pthread.dylib 0x00000001dc87de10 _pthread_wqthread + 284
30 libsystem_pthread.dylib 0x00000001dc87d93c start_wqthread + 8
)
2022-04-13 18:13:05.647262+0200 ServiceTOOLS Management[1843:69401] *** Terminating app resulting from uncaught exception ‘NSInternalInconsistencyException’, cause: ‘Modifications to the structure engine should not be carried out from a background thread after it has been accessed from the primary thread.’
*** First throw name stack:
(0x180f83e0c 0x198cd2ee4 0x198f95000 0x198f97b7c 0x18359caf4 0x18353b724 0x18370f810 0x18331a394 0x18331a084 0x183318a00 0x1836f7dac 0x1838530d0 0x18376ba8c 0x1833c3a44 0x1833987c8 0x18355b0b0 0x18360f4bc 0x1836c9c0c 0x1834cb638 0x18346c5c8 0x1835d289c 0x1834eeea4 0x100435320 0x100435854 0x1816ebb9c 0x1816fc210 0x10077c700 0x10077dfc8 0x100785150 0x100785e10 0x10079163c 0x1dc87de10 0x1dc87d93c)
libc++abi: terminating with uncaught exception of kind NSException
dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
*** Terminating app resulting from uncaught exception ‘NSInternalInconsistencyException’, cause: ‘Modifications to the structure engine should not be carried out from a background thread after it has been accessed from the primary thread.’
terminating with uncaught exception of kind NSException
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