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 |
|---|---|---|---|---|
| -1005 |
kCFURLErrorNetworkConnectionLost
Network connection was lost during the request.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1102 |
kCFURLErrorNoPermissionsToReadFile
No permissions to read the specified file in CFNetwork.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1009 |
kCFURLErrorNotConnectedToInternet
Network request failed because there is no active internet connection.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1010 |
kCFURLErrorRedirectToNonExistentLocation
Redirected to a location that does not exist.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1021 |
kCFURLErrorRequestBodyStreamExhausted
CFNetwork: request body stream exhausted.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1008 |
kCFURLErrorResourceUnavailable
Resource unavailable in URL request.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1200 |
kCFURLErrorSecureConnectionFailed
Secure connection failed in CFNetwork.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1201 |
kCFURLErrorServerCertificateHasBadDate
Server certificate has an invalid date
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1203 |
kCFURLErrorServerCertificateHasUnknownRoot
Server certificate root is unknown or untrusted
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1204 |
kCFURLErrorServerCertificateNotYetValid
Server certificate is not yet valid.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1202 |
kCFURLErrorServerCertificateUntrusted
Server certificate is untrusted.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1001 |
kCFURLErrorTimedOut
Network request timed out.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -998 |
kCFURLErrorUnknown
An unknown CFNetwork URL error occurred.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1002 |
kCFURLErrorUnsupportedURL
URL scheme or format not supported.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1013 |
kCFURLErrorUserAuthenticationRequired
CFNetwork user authentication is required for URL loading.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1012 |
kCFURLErrorUserCancelledAuthentication
CFURL authentication was canceled by the user.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -1014 |
kCFURLErrorZeroByteResource
CFURL encountered a zero-byte resource.
|
iOS, macOS, tvOS, visionOS, watchOS | CFNetwork | CFNetworkErrors.h |
| -15 |
kCFURLImproperArgumentsError
Improper or invalid URL arguments
|
iOS, macOS, tvOS, visionOS, watchOS | CoreFoundation | CFURLAccess.h |
| -17 |
kCFURLPropertyKeyUnavailableError
The requested URL property key is unavailable.
|
iOS, macOS, tvOS, visionOS, watchOS | CoreFoundation | CFURLAccess.h |
| -14 |
kCFURLRemoteHostUnavailableError
CFURL remote host unavailable error.
|
iOS, macOS, tvOS, visionOS, watchOS | CoreFoundation | CFURLAccess.h |