NSKeyedUnarchiver。UnarchivedArrayOfObjects((使用"NSInvalidArgumentException"终止应用程序，原因："-[__NSCFData count]
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跟踪符合NSManagedObject然而，decodedTrackLocation被声明为
@Published public var decodedTrackLocation: [CLLocation] = []，因为它不是持久的，而是应该在内存中。 -
下面的代码适用于某些"保存"，但有时它会抛出异常，我不知道该怎么办
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它在"iflet final="处崩溃，并抛出以下异常：
2021-06-01 17:42:28.052628+0200 GeoTrack[12300:1124356] -[__NSCFData count]: unrecognized selector sent to instance 0x17a61df50
2021-06-01 17:42:28.061055+0200 GeoTrack[12300:1124356] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFData count]: unrecognized selector sent to instance 0x17a61df50'
*** First throw call stack:
(0x1a9e27298 0x1bdb81480 0x1a9d362a8 0x1a9e298f4 0x1a9e2b89c 0x1ad67168c 0x1ad707e24 0x1026e5988 0x102704310 0x1b0345f94 0x1b0345fb0 0x1b0345f94 0x1b0737d74 0x1b0733e68 0x1b02225f4 0x1b088b190 0x1031f7ae8 0x102ee7ae8 0x102ee932c 0x102ef776c 0x1a9da62e0 0x1a9da0740 0x1a9d9f818 0x1c04a5570 0x1ac6cb0e8 0x1ac6d0664 0x1025696dc 0x1a9a7e140)
libc++abi: terminating with uncaught exception of type NSException
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFData count]: unrecognized selector sent to instance 0x17a61df50'
terminating with uncaught exception of type NSException
- NSKeyedUnarchiver失败的原因是我做了一些愚蠢的事情，我存储了错误的数据。我不明白的是，为什么这个代码所在的do try-catch块不起作用/catch。如有任何帮助，我们将不胜感激
问题中的代码：
do{
let out = try Data(referencing: NSData(data: track.trackLocation).decompressed(using: .lzma))
let archiver = try NSKeyedUnarchiver(forReadingFrom: out)
archiver.requiresSecureCoding = true
archiver.decodingFailurePolicy = .setErrorAndReturn
if let final = archiver.decodeArrayOfObjects(ofClass: CLLocation.self, forKey: NSKeyedArchiveRootObjectKey){
track.decodedTrackLocation = final
}
} catch {
print(error)
}
do{
let out = try Data(referencing: NSData(data: track.trackLocation).decompressed(using: .lzma))
if let final = try NSKeyedUnarchiver.unarchivedArrayOfObjects(ofClass: CLLocation.self, from: out){
track.decodedTrackLocation = final
}
} catch {
print(error)
}
因为抛出的不是Error，所以它是Objective-C上的NSInvalidArgumentException，NSEException。你可以找它：(-Larme
我学到了一些新东西！