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
41
EPROTOTYPE
Socket type does not match the protocol.
iOS, macOS, tvOS Kernel errno.h
82
EPWROFF
Device is powered off; operation cannot proceed.
iOS, macOS, tvOS Kernel errno.h
106
EQFULL
Message queue is full; no further messages can be sent.
iOS, macOS, tvOS Kernel errno.h
34
ERANGE
Numeric result out of range for the operation.
iOS, macOS, tvOS Kernel errno.h
71
EREMOTE
Target object is remote; local operations are not permitted without access protocols.
iOS, macOS, tvOS Kernel errno.h
30
EROFS
Read-only filesystem; write operation not permitted.
iOS, macOS, tvOS Kernel errno.h
73
ERPCMISMATCH
RPC version mismatch detected.
iOS, macOS, tvOS Kernel errno.h
-1279
errAborted
Operation was aborted.
macOS CarbonCore MacErrors.h
-1723
errAEAccessorNotFound
Requested accessor not found in AppleEvent handling.
macOS CarbonCore MacErrors.h
-10002
errAEBadKeyForm
Apple Event bad key form
macOS CarbonCore MacErrors.h
-1705
errAEBadListItem
AppleEvent list item is invalid or out of range.
macOS CarbonCore MacErrors.h
-1726
errAEBadTestKey
Invalid test key in AppleEvents.
macOS CarbonCore MacErrors.h
-1741
errAEBufferTooSmall
Provided buffer is too small for AppleEvent data.
macOS CarbonCore MacErrors.h
-1740
errAEBuildSyntaxError
Syntax error occurred while building an AppleEvent.
macOS CarbonCore MacErrors.h
-10010
errAECantHandleClass
Apple Event cannot handle class.
macOS CarbonCore MacErrors.h
-10024
errAECantPutThatThere
Apple Event: cannot put that there.
macOS CarbonCore MacErrors.h
-10009
errAECantSupplyType
Apple Event cannot supply type.
macOS CarbonCore MacErrors.h
-10015
errAECantUndo
Cannot undo the last AppleEvent.
macOS CarbonCore MacErrors.h
-1700
errAECoercionFail
Apple Event coercion failed.
macOS CarbonCore MacErrors.h
-1702
errAECorruptData
AppleEvent data is corrupt or invalid.
macOS CarbonCore MacErrors.h
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