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 |
|---|---|---|---|---|
| -9804 |
errSSLSessionNotFound
SSL session not recognized or has expired.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9852 |
errSSLTransportReset
Transport layer was reset during the SSL operation.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9852 |
errSSLTransportReset
Transport layer was reset during the SSL operation.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9856 |
errSSLUnexpectedMessage
Received an unexpected SSL handshake message.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9856 |
errSSLUnexpectedMessage
Received an unexpected SSL handshake message.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9849 |
errSSLUnexpectedRecord
Received an unexpected record in SSL.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9849 |
errSSLUnexpectedRecord
Received an unexpected record in SSL.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9864 |
errSSLUnknownPSKIdentity
PSK identity is unknown or unrecognized.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9864 |
errSSLUnknownPSKIdentity
PSK identity is unknown or unrecognized.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9812 |
errSSLUnknownRootCert
Root certificate is unknown or untrusted.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9812 |
errSSLUnknownRootCert
Root certificate is unknown or untrusted.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9865 |
errSSLUnrecognizedName
Server name is unrecognized or invalid in SNI.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9865 |
errSSLUnrecognizedName
Server name is unrecognized or invalid in SNI.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9855 |
errSSLUnsupportedExtension
Encountered an unsupported SSL extension.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9855 |
errSSLUnsupportedExtension
Encountered an unsupported SSL extension.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9850 |
errSSLWeakPeerEphemeralDHKey
Peer’s ephemeral DH key is too weak.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9850 |
errSSLWeakPeerEphemeralDHKey
Peer’s ephemeral DH key is too weak.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9803 |
errSSLWouldBlock
Operation would block in a non-blocking SSL context.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |
| -9803 |
errSSLWouldBlock
Operation would block in a non-blocking SSL context.
|
iOS, macOS, tvOS, visionOS, watchOS | Security | SecBase.h |
| -9807 |
errSSLXCertChainInvalid
Peer’s cross-certificate chain is invalid.
|
iOS, macOS, tvOS, watchOS | Security | SecureTransport.h |