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 |
|---|---|---|---|---|
| -3241 |
kENOPROTOOPTErr
Protocol option error in ENO.
|
macOS | CarbonCore | MacErrors.h |
| -3202 |
kENORSRCErr
ENORSRC error occurred.
|
macOS | CarbonCore | MacErrors.h |
| -3271 |
kENOSRErr
ENO SR error.
|
macOS | CarbonCore | MacErrors.h |
| -3274 |
kENOSTRErr
No stream or data is available.
|
macOS | CarbonCore | MacErrors.h |
| -3256 |
kENOTCONNErr
Socket is not connected
|
macOS | CarbonCore | MacErrors.h |
| -3237 |
kENOTSOCKErr
Operation attempted on a non-socket descriptor.
|
macOS | CarbonCore | MacErrors.h |
| -3224 |
kENOTTYErr
Inappropriate ioctl for device
|
macOS | CarbonCore | MacErrors.h |
| -3205 |
kENXIOErr
Device not configured (POSIX).
|
macOS | CarbonCore | MacErrors.h |
| -3244 |
kEOPNOTSUPPErr
Operation not supported.
|
macOS | CarbonCore | MacErrors.h |
| -3200 |
kEPERMErr
Operation not permitted
|
macOS | CarbonCore | MacErrors.h |
| -3231 |
kEPIPEErr
Broken pipe error.
|
macOS | CarbonCore | MacErrors.h |
| -3269 |
kEPROTOErr
Protocol error.
|
macOS | CarbonCore | MacErrors.h |
| -3242 |
kEPROTONOSUPPORTErr
Protocol not supported error.
|
macOS | CarbonCore | MacErrors.h |
| -3240 |
kEPROTOTYPEErr
Protocol prototype error.
|
macOS | CarbonCore | MacErrors.h |
| -3233 |
kERANGEErr
Result out of range error.
|
macOS | CarbonCore | MacErrors.h |
| 14 |
KERN_ABORTED
Operation was aborted before completion.
|
iOS, macOS | Kernel | kern_return.h |
| 11 |
KERN_ALREADY_IN_SET
Resource is already in the specified set.
|
iOS, macOS | Kernel | kern_return.h |
| 30 |
KERN_ALREADY_WAITING
Thread is already waiting; operation conflicts with the current thread state.
|
iOS, macOS | Kernel | kern_return.h |
| 50 |
KERN_CODESIGN_ERROR
Codesigning error; resource or process signature is invalid or missing.
|
iOS, macOS | Kernel | kern_return.h |
| 31 |
KERN_DEFAULT_SET
Default processor set specified; not valid for the requested operation.
|
iOS, macOS | Kernel | kern_return.h |