WidgetKit Crash

Question

sle39lvr OP

Created Oct ’20

Replies 7

Boosts 0

Views 3.2k

Participants 8

On the crash reports, I am getting a lot of crashes with this crash report for two iOS 14 Widgets:

Code Block Foundation    _NSFileHandleRaiseOperationException
....
SwiftUI       FileArchiveWriter.AppendByes(_size:)
....
My Widget       closure #1 in MyTimelineProver.getTimeline(in:completion:)

When checked within the project, this happens in:

Code Block func getTimeline(in context: Self.Context, completion: @escaping (Timeline<Self.Entry>) -> Void)

I have one timeline that asked to update every 5 mins.

Boost

Answer 1

nick-sun OP

Oct ’20

Getting the same crash. Happens randomly on a TestFlight build.

0

Answer 2

DTS Engineer OP

Apple

Oct ’20

Getting the same crash. Happens randomly on a TestFlight build.

Can you post an Apple crash report for this? Use the text attachment feature (the paperclip button) to avoid clogging up the timeline.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

0

Answer 3

long-nguyen-au OP

Nov ’20

I also get a lot of this issues.
It seems like my timeline get called multiple times and it just crashes

0

Answer 4

LGariv OP

Nov ’20

Happened to me today as well. It seems to be an error that Xcode missed before compiling, resulting in a bad function in the executable (I may or may not have used the correct terminology, I'm fairly new to app development, sorry) - I've rewritten one of my functions and suddenly it started to work again.

Until it fixed, try to delete / comment out chunks of your code (one at a time, of course) until you find where the problem is, then try to fix or rewrite it. Managed to fix that twice this way.

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Answer 5

graystripe OP

Apr ’21

Make sure that you're only calling the completion handler once!
It can be a bit hard to trace with nested closures + networking, so try some print statements and see if that helps.

0

Answer 6

basitjawaid OP

Nov ’21

0   CoreFoundation                	       0x18184904c __exceptionPreprocess + 220
1   libobjc.A.dylib               	       0x199ebdf54 objc_exception_throw + 60
2   Foundation                    	       0x183105238 -[NSConcreteFileHandle offsetInFile] + 0
3   Foundation                    	       0x183104e10 -[NSConcreteFileHandle init] + 0
4   Foundation                    	       0x18301395c -[NSString(NSURLUtilities) stringByRemovingPercentEncoding] + 0
5   SwiftUI                       	       0x1892bafe8 FileArchiveWriter.appendBytes(_:size:) + 52
6   SwiftUI                       	       0x1892d130c FileArchiveWriter.append<A>(_:) + 184
7   SwiftUI                       	       0x189310cb4 specialized ArchiveWriter.addAttachment(from:) + 388
8   SwiftUI                       	       0x18930104c Encoder.encodeAttachedValue<A>(key:encoder:) + 400
9   SwiftUI                       	       0x1892f7ae4 CodableCGImage.encode(to:) + 144
10  SwiftUI                       	       0x1893098c0 protocol witness for Encodable.encode(to:) in conformance CodableCGImage + 20
11  libswiftCore.dylib            	       0x1865340fc dispatch thunk of Encodable.encode(to:) + 32
12  libswiftFoundation.dylib      	       0x185e906f8 __PlistEncoder.box_<A>(_:) + 376
13  libswiftFoundation.dylib      	       0x185e9d908 _PlistKeyedEncodingContainer.encode<A>(_:forKey:) + 384
14  libswiftFoundation.dylib      	       0x185e9b414 protocol witness for KeyedEncodingContainerProtocol.encode<A>(_:forKey:) in conformance _PlistKeyedEncodingContainer<A> + 32
15  libswiftCore.dylib            	       0x186245eec _KeyedEncodingContainerBox.encode<A, B>(_:forKey:) + 396
16  libswiftCore.dylib            	       0x186239328 KeyedEncodingContainer.encode<A>(_:forKey:) + 68
17  SwiftUI                       	       0x18930c0e8 GraphicsImage.encode(to:) + 800

I am also facing this crash on xcode 13.1 ios 15.1, the simulator did work perfectly while testflight build does not load the widget

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Answer 7

DTS Engineer OP

Apple

Nov ’21

Unfortunately a backtrace snippet isn’t enough for me to offer any insight into this. Please post the full Apple crash report.

ps Since I responded earlier on this thread I’ve written up instructions on how to do this.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0