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 |
|---|---|---|---|---|
| 6 |
KERN_RESOURCE_SHORTAGE
Resource shortage in Kernel.
|
iOS, macOS | Kernel | kern_return.h |
| 21 |
KERN_RIGHT_EXISTS
Specified right already exists; duplication is not permitted.
|
iOS, macOS | Kernel | kern_return.h |
| 45 |
KERN_RPC_CONTINUE_ORPHAN
Continuation requested for an orphaned remote procedure call (RPC).
|
iOS, macOS | Kernel | kern_return.h |
| 43 |
KERN_RPC_SERVER_TERMINATED
RPC server was terminated; operation cannot proceed.
|
iOS, macOS | Kernel | kern_return.h |
| 44 |
KERN_RPC_TERMINATE_ORPHAN
Orphaned RPC operation terminated prematurely.
|
iOS, macOS | Kernel | kern_return.h |
| 42 |
KERN_SEMAPHORE_DESTROYED
Semaphore destroyed; operation cannot proceed.
|
iOS, macOS | Kernel | kern_return.h |
| 0 |
KERN_SUCCESS
Operation successful in Kernel.
|
iOS, macOS | Kernel | kern_return.h |
| 37 |
KERN_TERMINATED
Task or thread was terminated; operation failed.
|
iOS, macOS | Kernel | kern_return.h |
| 19 |
KERN_UREFS_OVERFLOW
Overflow of user references detected; operation failed.
|
iOS, macOS | Kernel | kern_return.h |
| 1 |
kErrorIfFileNotFound
QuickTime could not find the specified file.
|
macOS | QuickTime | QTML.h |
| -3257 |
kESHUTDOWNErr
Connection on a shutdown socket
|
macOS | CarbonCore | MacErrors.h |
| -3243 |
kESOCKTNOSUPPORTErr
Socket type not supported in this environment.
|
macOS | CarbonCore | MacErrors.h |
| -3277 |
kESRCHErr
Unknown.
|
macOS | CarbonCore | MacErrors.h |
| -3259 |
kETIMEDOUTErr
Protocol timeout error.
|
macOS | CarbonCore | MacErrors.h |
| -3270 |
kETIMEErr
Timer expired or timed out
|
macOS | CarbonCore | MacErrors.h |
| -3258 |
kETOOMANYREFSErr
Exceeded maximum number of references.
|
macOS | CarbonCore | MacErrors.h |
| 1701999136 ('err ') (0x65727220) |
kEventParamLaunchErr
Event parameter launch error in HIToolbox.
|
macOS | HIToolbox | CarbonEvents.h |
| -3234 |
kEWOULDBLOCKErr
Operation would block; resource temporarily unavailable.
|
macOS | CarbonCore | MacErrors.h |
| -66570 |
kExtAudioFileError_AsyncWriteBufferOverflow
Buffer overflow occurred during asynchronous write operations to the file.
|
iOS, macOS, tvOS, visionOS, watchOS | AudioToolbox | ExtendedAudioFile.h |
| -66569 |
kExtAudioFileError_AsyncWriteTooLarge
Asynchronous write requested is too large.
|
iOS, macOS, tvOS, visionOS, watchOS | AudioToolbox | ExtendedAudioFile.h |