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 |
|---|---|---|---|---|
| 3691020315, -603946981 (int32) (0xDC00801B) |
kOSKextReturnSystemPolicy
Kernel extension restricted by system policy or configuration.
|
macOS | Kernel | OSKextLib.h |
| 3691020313, -603946983 (int32) (0xDC008019) |
kOSKextReturnTimeout
Kernel extension operation timed out, likely due to prolonged execution or unresponsive behavior during the process.
|
macOS | Kernel | OSKextLib.h |
| 3691020297, -603946999 (int32) (0xDC008009) |
kOSKextReturnUnsupported
Kernel extension unsupported on the current system or configuration.
|
macOS | Kernel | OSKextLib.h |
| 3691020300, -603946996 (int32) (0xDC00800C) |
kOSKextReturnValidation
Kernel extension validation error.
|
macOS | Kernel | OSKextLib.h |
| 3691003914, -603963382 (int32) (0xDC00400A) |
kOSMetaClassDuplicateClass
Duplicate OSMetaClass detected; a class with the same name already exists in the kernel environment.
|
macOS | Kernel | OSReturn.h |
| 3691003906, -603963390 (int32) (0xDC004002) |
kOSMetaClassHasInstances
OSMetaClass cannot be unloaded because active instances of the class are still in use.
|
macOS | Kernel | OSReturn.h |
| 3691003913, -603963383 (int32) (0xDC004009) |
kOSMetaClassInstNoSuper
Instance's superclass for the OSMetaClass is unavailable.
|
macOS | Kernel | OSReturn.h |
| 3691003905, -603963391 (int32) (0xDC004001) |
kOSMetaClassInternal
Internal error occurred in OSMetaClass; operation failed.
|
macOS | Kernel | OSReturn.h |
| 3691003909, -603963387 (int32) (0xDC004005) |
kOSMetaClassNoDicts
Dictionary data unavailable for the specified OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3691003907, -603963389 (int32) (0xDC004003) |
kOSMetaClassNoInit
Initialization data unavailable for the OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3691003911, -603963385 (int32) (0xDC004007) |
kOSMetaClassNoInsKModSet
Instance kernel module set unavailable for the OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3691003915, -603963381 (int32) (0xDC00400B) |
kOSMetaClassNoKext
Kernel extension is unavailable for the specified OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3691003910, -603963386 (int32) (0xDC004006) |
kOSMetaClassNoKModSet
Kernel module set unavailable for the specified OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3691003912, -603963384 (int32) (0xDC004008) |
kOSMetaClassNoSuper
Superclass for the OSMetaClass is unavailable.
|
macOS | Kernel | OSReturn.h |
| 3691003908, -603963388 (int32) (0xDC004004) |
kOSMetaClassNoTempData
Temporary data unavailable for the specified OSMetaClass.
|
macOS | Kernel | OSReturn.h |
| 3690987521, -603979775 (int32) (0xDC000001) |
kOSReturnError
Generic OSReturn error; no specific details available.
|
macOS | Kernel | OSReturn.h |
| 0 (0x0) |
kOSReturnSuccess
Operation successful.
|
macOS | Kernel | OSReturn.h |
| -3152 |
kOTAccessErr
OpenType access error.
|
macOS | CarbonCore | MacErrors.h |
| -3172 |
kOTAddressBusyErr
Address or endpoint is busy in OpenTransport.
|
macOS | CarbonCore | MacErrors.h |
| -3150 |
kOTBadAddressErr
OpenTransport encountered a bad address error.
|
macOS | CarbonCore | MacErrors.h |