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 |
|---|---|---|---|---|
| 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 |
| 32 |
KERN_EXCEPTION_PROTECTED
Exception handling failed due to the operation being protected or restricted.
|
iOS, macOS | Kernel | kern_return.h |
| 5 |
KERN_FAILURE
General kernel failure; operation could not be completed.
|
iOS, macOS | Kernel | kern_return.h |
| 1 |
KERN_INVALID_ADDRESS
Specified memory address is invalid.
|
iOS, macOS | Kernel | kern_return.h |
| 4 |
KERN_INVALID_ARGUMENT
Invalid argument provided to the kernel function.
|
iOS, macOS | Kernel | kern_return.h |
| 20 |
KERN_INVALID_CAPABILITY
Invalid capability provided; mismatch with expected resource capabilities.
|
iOS, macOS | Kernel | kern_return.h |
| 22 |
KERN_INVALID_HOST
Specified host is invalid or unreachable.
|
iOS, macOS | Kernel | kern_return.h |
| 33 |
KERN_INVALID_LEDGER
Specified ledger is invalid or improperly configured, preventing the requested kernel operation.
|
iOS, macOS | Kernel | kern_return.h |
| 34 |
KERN_INVALID_MEMORY_CONTROL
Invalid memory control request; operation cannot proceed.
|
iOS, macOS | Kernel | kern_return.h |
| 15 |
KERN_INVALID_NAME
Invalid name specified for the resource or operation.
|
iOS, macOS | Kernel | kern_return.h |
| 29 |
KERN_INVALID_OBJECT
Invalid object reference provided for the operation.
|
iOS, macOS | Kernel | kern_return.h |
| 28 |
KERN_INVALID_POLICY
Invalid policy in Kernel.
|
iOS, macOS | Kernel | kern_return.h |
| 26 |
KERN_INVALID_PROCESSOR_SET
Invalid or nonexistent processor set specified for the operation.
|
iOS, macOS | Kernel | kern_return.h |
| 17 |
KERN_INVALID_RIGHT
Invalid access right specified for the operation.
|
iOS, macOS | Kernel | kern_return.h |
| 35 |
KERN_INVALID_SECURITY
Operation failed due to invalid security credentials or policies.
|
iOS, macOS | Kernel | kern_return.h |
| 16 |
KERN_INVALID_TASK
Specified task is invalid or terminated.
|
iOS, macOS | Kernel | kern_return.h |
| 18 |
KERN_INVALID_VALUE
Invalid kernel memory value provided; operation cannot be completed.
|
iOS, macOS | Kernel | kern_return.h |
| 40 |
KERN_LOCK_OWNED
Lock already owned by another thread or process.
|
iOS, macOS | Kernel | kern_return.h |
| 41 |
KERN_LOCK_OWNED_SELF
Lock already owned by the current thread.
|
iOS, macOS | Kernel | kern_return.h |