NSKeyedArchiver error after cleaned a mistake

Question

VanceRegnet OP

Created Dec ’23

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I tried to archive a NSDictionary with a NSColor :

data =  [NSKeyedArchiver archivedDataWithRootObject: <vrRoot> requiringSecureCoding:YES error:&error];

and I get this error :

Printing description of error: Error Domain=NSCocoaErrorDomain Code=4864 "value for key 'NS.objects' was of unexpected class 'NSColor' (0x7ff8465d0d88) [/System/Library/Frameworks/AppKit.framework]. Allowed classes are: {( "'NSMutableDictionary' (0x7ff8465f9b48) [/System/Library/Frameworks/CoreFoundation.framework]" )}" UserInfo={NSDebugDescription=value for key 'NS.objects' was of unexpected class 'NSColor' (0x7ff8465d0d88) [/System/Library/Frameworks/AppKit.framework]. Allowed classes are: {( "'NSMutableDictionary' (0x7ff8465f9b48) [/System/Library/Frameworks/CoreFoundation.framework]" )}}

Then I transferred NSColor to NSArray - but the error was the same. I want data save in Core Data, please help me ♡.

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Answer 1

DTS Engineer OP

Apple

Jan ’24

You’ve opted in to secure coding — which is a good thing, to be clear — and that requires that you tell the coder what classes you expect to find in the archive. The NSSecureCoding protocol docs has a link to a doc that explains how to do this.

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