Apple Error Codes Database

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
3691020306, -603946990 (int32) (0xDC008012)
kOSKextReturnBootLevel
Operation restricted due to boot level limitations.
 macOS Kernel OSKextLib.h
3691020304, -603946992 (int32) (0xDC008010)
kOSKextReturnCache
Kernel extension failed due to cache issues or corruption.
 macOS Kernel OSKextLib.h
3691020305, -603946991 (int32) (0xDC008011)
kOSKextReturnDeferred
Kernel extension load deferred due to conditions not met.
 macOS Kernel OSKextLib.h
3691020302, -603946994 (int32) (0xDC00800E)
kOSKextReturnDependencies
Dependencies for the kernel extension could not be resolved.
 macOS Kernel OSKextLib.h
3691020309, -603946987 (int32) (0xDC008015)
kOSKextReturnDependencyLoadError
Kernel extension failed to load due to missing or incompatible dependencies required for proper functionality.
 macOS Kernel OSKextLib.h
3691020298, -603946998 (int32) (0xDC00800A)
kOSKextReturnDisabled
Kernel extension disabled; cannot load or execute.
 macOS Kernel OSKextLib.h
3691020289, -603947007 (int32) (0xDC008001)
kOSKextReturnInternalError
Internal kernel extension error; operation could not be completed.
 macOS Kernel OSKextLib.h
3691020312, -603946984 (int32) (0xDC008018)
kOSKextReturnInUse
Kernel extension is currently in use; operation cannot proceed.
 macOS Kernel OSKextLib.h
3691020293, -603947003 (int32) (0xDC008005)
kOSKextReturnInvalidArgument
Kernel extension received invalid argument; operation cannot proceed.
 macOS Kernel OSKextLib.h
3691020310, -603946986 (int32) (0xDC008016)
kOSKextReturnLinkError
Kernel extension failed to link due to unresolved symbols or incompatible dependencies during the loading process.
 macOS Kernel OSKextLib.h
3691020308, -603946988 (int32) (0xDC008014)
kOSKextReturnLoadedVersionDiffers
Loaded kernel extension version differs from requested version.
 macOS Kernel OSKextLib.h
3691020290, -603947006 (int32) (0xDC008002)
kOSKextReturnNoMemory
Insufficient memory for kernel extension operations.
 macOS Kernel OSKextLib.h
3691020291, -603947005 (int32) (0xDC008003)
kOSKextReturnNoResources
Kernel extension operation failed due to lack of resources.
 macOS Kernel OSKextLib.h
3691020299, -603946997 (int32) (0xDC00800B)
kOSKextReturnNotAKext
File is not a valid kernel extension (kext).
 macOS Kernel OSKextLib.h
3691020294, -603947002 (int32) (0xDC008006)
kOSKextReturnNotFound
Kernel extension not found in the system.
 macOS Kernel OSKextLib.h
3691020307, -603946989 (int32) (0xDC008013)
kOSKextReturnNotLoadable
Kernel extension is not loadable due to errors or restrictions.
 macOS Kernel OSKextLib.h
3691020292, -603947004 (int32) (0xDC008004)
kOSKextReturnNotPrivileged
Kernel extension operation requires elevated privileges.
 macOS Kernel OSKextLib.h
3691020296, -603947000 (int32) (0xDC008008)
kOSKextReturnSerialization
Kernel extension serialization error; data format invalid or corrupted.
 macOS Kernel OSKextLib.h
3691020311, -603946985 (int32) (0xDC008017)
kOSKextReturnStartStopError
Error occurred during start or stop operation for the kernel extension.
 macOS Kernel OSKextLib.h
3691020314, -603946982 (int32) (0xDC00801A)
kOSKextReturnStopping
Kernel extension is stopping or shutting down.
 macOS Kernel OSKextLib.h
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