Comprehensive Apple Error Codes

Explore our extensive database of over 5,000 Apple Ecosystem error codes. From macOS to iOS, tvOS, watchOS, and visionOS, each code is presented with its name and a concise description to help you quickly pinpoint and resolve issues.

Whether you’re a developer refining an app or a user troubleshooting a system glitch, this resource empowers you with the knowledge to decode cryptic errors and find actionable solutions. No more guesswork—just clear guidance to keep your projects and devices running smoothly.

Number Name & Description Platforms Framework Header
-962
errItemNotFoundInTree
Item not found in the AVL tree.
macOS CarbonCore AVLTree.h
-5245
errIteratorReachedEnd
Iterator has reached the end of data
macOS CarbonCore MacErrors.h
-30852
errKBFailSettingID
Setting the keyboard ID failed.
macOS HIToolbox Keyboards.h
-30853
errKBFailSettingTranslationTable
Setting the keyboard translation table failed.
macOS HIToolbox Keyboards.h
-30854
errKBFailWritePreference
Writing the keyboard preference failed.
macOS HIToolbox Keyboards.h
-30851
errKBIlligalParameters
Invalid or illegal parameters were provided for the keyboard operation.
macOS HIToolbox Keyboards.h
-30850
errKBPS2KeyboardNotAvailable
PS/2 keyboard is not available or recognized by the system.
macOS HIToolbox Keyboards.h
-25293
errKCAuthFailed
Keychain authentication failed.
macOS CarbonCore MacErrors.h
-25301
errKCBufferTooSmall
Keychain buffer is too small.
macOS CarbonCore MacErrors.h
-25318
errKCCreateChainFailed
Certificate chain creation failed
macOS CarbonCore MacErrors.h
-25316
errKCDataNotAvailable
Keychain data not available
macOS CarbonCore MacErrors.h
-25317
errKCDataNotModifiable
Keychain data is read-only
macOS CarbonCore MacErrors.h
-25302
errKCDataTooLarge
Security keychain: data too large.
macOS CarbonCore MacErrors.h
-25297
errKCDuplicateCallback
Security: duplicate callback.
macOS CarbonCore MacErrors.h
-25299
errKCDuplicateItem
Keychain duplicate item error.
macOS CarbonCore MacErrors.h
-25296
errKCDuplicateKeychain
A keychain with this name already exists.
macOS CarbonCore MacErrors.h
-25308
errKCInteractionNotAllowed
Keychain interaction not allowed for security operation.
macOS CarbonCore MacErrors.h
-25315
errKCInteractionRequired
User interaction required for Keychain operation
macOS CarbonCore MacErrors.h
-25298
errKCInvalidCallback
Invalid callback in Keychain services.
macOS CarbonCore MacErrors.h
-25304
errKCInvalidItemRef
Invalid item reference in Keychain.
macOS CarbonCore MacErrors.h
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