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
47
EAFNOSUPPORT
Address family not supported by the protocol.
iOS, macOS, tvOS Kernel errno.h
35
EAGAIN
Resource temporarily unavailable; operation should be retried.
iOS, macOS, tvOS Kernel errno.h
1
EAI_ADDRFAMILY
Address family not supported for the specified operation.
iOS, macOS, tvOS Kernel netdb.h
2
EAI_AGAIN
Temporary failure in name resolution.
iOS, macOS, tvOS Kernel netdb.h
3
EAI_BADFLAGS
Invalid flags specified for the operation.
iOS, macOS, tvOS Kernel netdb.h
12
EAI_BADHINTS
Invalid hints provided for the address resolution.
iOS, macOS, tvOS Kernel netdb.h
4
EAI_FAIL
Address resolution failed due to an unspecified error.
iOS, macOS, tvOS Kernel netdb.h
5
EAI_FAMILY
Invalid or unsupported address family specified.
iOS, macOS, tvOS Kernel netdb.h
6
EAI_MEMORY
Memory allocation failure in network.
iOS, macOS, tvOS Kernel netdb.h
7
EAI_NODATA
No data available for the requested operation.
iOS, macOS, tvOS Kernel netdb.h
8
EAI_NONAME
Host or service name could not be resolved.
iOS, macOS, tvOS Kernel netdb.h
14
EAI_OVERFLOW
Operation failed due to buffer or value overflow.
iOS, macOS, tvOS Kernel netdb.h
13
EAI_PROTOCOL
Protocol error in address resolution.
iOS, macOS, tvOS Kernel netdb.h
9
EAI_SERVICE
Service name is not supported for the requested operation.
iOS, macOS, tvOS Kernel netdb.h
10
EAI_SOCKTYPE
Invalid or unsupported socket type specified.
iOS, macOS, tvOS Kernel netdb.h
11
EAI_SYSTEM
System error occurred during address resolution.
iOS, macOS, tvOS Kernel netdb.h
37
EALREADY
Operation already in progress.
iOS, macOS, tvOS Kernel errno.h
80
EAUTH
Authentication error; credentials provided are invalid or mismatched.
iOS, macOS, tvOS Kernel errno.h
86
EBADARCH
Invalid architecture; binary incompatible with the system's architecture.
iOS, macOS, tvOS Kernel errno.h
85
EBADEXEC
Executable file format error; operation could not execute.
iOS, macOS, tvOS Kernel errno.h
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