Widget crashing with * Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '* -[NSConcreteFileHandle fileDescriptor]: Invalid argument'

Question

Created Sep ’20

Replies 7

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Views 3.7k

Participants 7

Anyone know how to solve this error?
I have no idea why it's happening because I'm not using NSFileHandle or anything like that at all, my widget is super simple: makes an API call, processes it with SwiftyJSON, and displays very simple data.

Thanks in advance

Boost

Answer 1

boerni OP

Oct ’20

I think this could happen when you call completion 2 times.

4

Answer 2

iQQator OP

Dec ’20

I have got this crash too, but it happened when scroll this widget in widget install menu.
This description of crash is not informative at all! @Apple

0

Answer 3

siburb2 OP

Dec ’20

Thanks @boerni.

In our testing, it definitely causes an exception if you call completion more than once, but it seems to be a little different - "No such file or directory" instead of "Invalid Argument".

Code Block * Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '* -[NSConcreteFileHandle fileDescriptor]: No such file or directory'
terminating with uncaught exception of type NSException

Having said that, I'll see if I can find any ways that ours could possibly call completion more than once and see if that helps.

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Answer 4

AlexSok OP

Dec ’20

Hello everyone. We have something similar, a crash in WidgetExtension. Report says:

Code Block Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  0
Last Exception Backtrace:
0   CoreFoundation                	0x1b00fc878 exceptionPreprocess + 220 (NSException.m:199)
1   libobjc.A.dylib               	0x1c4652c50 objc_exception_throw + 60 (objc-exception.mm:565)
2   Foundation                    	0x1b13ea7f4 _NSFileHandleRaiseOperationExceptionWhileReading + 280 (NSFileHandle.m:71)
3   Foundation                    	0x1b13ea25c _NSFileHandleRaiseOperationException + 20 (NSFileHandle.m:75)
4   Foundation                    	0x1b13a9d58 -[NSConcreteFileHandle fileDescriptor] + 56 (NSFileHandle.m:640)
5   SwiftUI                       	0x1b6bff814 FileArchiveWriter.appendBytes(_:size:) + 52 (ArchiveData.swift:160)
6   SwiftUI                       	0x1b6bffa88 FileArchiveWriter.append<A>(_:) + 200 (ArchiveData.swift:154)
7   SwiftUI                       	0x1b6bfef04 ArchiveWriter.addAttachment(data:) + 372 (ArchiveData.swift:79)
8   SwiftUI                       	0x1b6c010bc Encoder.encodeAttachedValue<A>(key:data:) + 460 (ArchiveData.swift:362)
9   SwiftUI                       	0x1b6fa07ac CodableCGImage.encode(to:) + 136 (CodableImage.swift:111)
10  SwiftUI                       	0x1b6fa0c64 protocol witness for Encodable.encode(to:) in conformance CodableCGImage + 20 (<compiler-generated>:0)
11  libswiftCore.dylib            	0x1b3ffbcd8 dispatch thunk of Encodable.encode(to:) + 28
12  libswiftFoundation.dylib      	0x1b3b94b64 PlistEncoder.box_<A>(_:) + 340 (PlistEncoder.swift:523)
13  libswiftFoundation.dylib      	0x1b3b95fb8 _PlistKeyedEncodingContainer.encode<A>(_:forKey:) + 492 (PlistEncoder.swift:508)
14  libswiftFoundation.dylib      	0x1b3b97184 protocol witness for KeyedEncodingContainerProtocol.encode<A>(_:forKey:) in conformance _PlistKeyedEncodingContainer<A> + 32 (<compiler-generated>:0)
15  libswiftCore.dylib            	0x1b3d17048 _KeyedEncodingContainerBox.encode<A, B>(_:forKey:) + 404 (Codable.swift:3732)
16  libswiftCore.dylib            	0x1b3d0b1ac KeyedEncodingContainer.encode<A>(_:forKey:) + 52 (Codable.swift:677)
17  SwiftUI                       	0x1b6a2594c GraphicsImage.encode(to:) + 392 (GraphicsImage.swift:124)
18  SwiftUI                       	0x1b6a26294 protocol witness for Encodable.encode(to:) in conformance GraphicsImage + 16 (<compiler-generated>:0)
19  libswiftCore.dylib            	0x1b3ffbcd8 dispatch thunk of Encodable.encode(to:) + 28
...

We are still investigating this crash. We definitely don't see our code at all.

0

Answer 5

cjhess19 OP

Apr ’22

Any updates on this error message? Running into the same exact error and have no clue how to resolve. I double checked that I am not calling completion multiple times.

0

Answer 6

cjhess19 OP

Apr ’22

Any updates on this error message? Running into the same exact error and have no clue how to resolve. I double checked that I am not calling completion multiple times.

0

Answer 7

bevan OP

Jul ’23

Check you aren't calling the completion handler on a background thread. That solved my issue...

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Widget crashing with *** Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '*** -[NSConcreteFileHandle fileDescriptor]: Invalid argument'

Widget crashing with * Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '* -[NSConcreteFileHandle fileDescriptor]: Invalid argument'