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 |
|---|---|---|---|---|
| 256 |
NSFileReadUnknownError
An unknown file read error occurred.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 264 |
NSFileReadUnknownStringEncodingError
Specified or detected string encoding is unknown or unsupported during file read.
|
macOS | Foundation | FoundationErrors.h |
| 262 |
NSFileReadUnsupportedSchemeError
File read unsupported scheme error
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 516 |
NSFileWriteFileExistsError
File write operation failed because the file already exists
|
macOS | Foundation | FoundationErrors.h |
| 517 |
NSFileWriteInapplicableStringEncodingError
String encoding is not applicable for the file write operation.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 514 |
NSFileWriteInvalidFileNameError
Cannot write due to invalid filename.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 513 |
NSFileWriteNoPermissionError
No permission to write the specified file.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 640 |
NSFileWriteOutOfSpaceError
No space left on the device for file writing.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 512 |
NSFileWriteUnknownError
An unknown error occurred during file write operation.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 518 |
NSFileWriteUnsupportedSchemeError
Unsupported URL scheme for file write operation.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 642 |
NSFileWriteVolumeReadOnlyError
Cannot write due to volume being read-only
|
macOS | Foundation | FoundationErrors.h |
| 2048 |
NSFormattingError
Minimum formatting error in Foundation.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 2559 |
NSFormattingErrorMaximum
Maximum formatting error
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 2048 |
NSFormattingErrorMinimum
Minimum formatting error in Foundation.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | FoundationErrors.h |
| 1 |
NSHandleUncaughtRuntimeErrorMask
Mask for handling uncaught runtime errors.
|
macOS | ExceptionHandling | NSExceptionHandler.h |
| 1 |
NSHangOnUncaughtRuntimeErrorMask
Process hangs on uncaught runtime errors.
|
macOS | ExceptionHandling | NSExceptionHandler.h |
| 134190 |
NSInferredMappingModelError
Inferred mapping model is invalid or cannot be generated.
|
iOS, macOS, tvOS, visionOS, watchOS | CoreData | CoreDataErrors.h |
| 5 |
NSInternalSpecifierError
Internal error occurred while processing the specifier.
|
macOS | Foundation | NSScriptObjectSpecifiers |
| 4 |
NSInvalidIndexSpecifierError
Invalid index specified; operation cannot be performed.
|
macOS | Foundation | NSScriptObjectSpecifiers |
| -1000 |
NSItemProviderItemUnavailableError
NSItemProvider: item unavailable error.
|
iOS, macOS, tvOS, visionOS, watchOS | Foundation | NSItemProvider.h |