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
5
EKErrorInternalFailure
Internal failure occurred in EventKit.
iOS, macOS, visionOS, watchOS EventKit EKError.h
26
EKErrorInvalidEntityType
Invalid entity type specified for EventKit.
iOS, macOS, visionOS, watchOS EventKit EKError.h
13
EKErrorInvalidSpan
Invalid span specified in Event Kit.
iOS, macOS, visionOS, watchOS EventKit EKError.h
12
EKErrorInvitesCannotBeMoved
Invites cannot be moved to the new event store.
iOS, macOS, visionOS, watchOS EventKit EKError.h
1
EKErrorNoCalendar
Event Kit no calendar available.
iOS, macOS, visionOS, watchOS EventKit EKError.h
3
EKErrorNoEndDate
No end date specified for the event.
iOS, macOS, visionOS, watchOS EventKit EKError.h
2
EKErrorNoStartDate
Event has no start date in EventKit.
iOS, macOS, visionOS, watchOS EventKit EKError.h
11
EKErrorObjectBelongsToDifferentStore
EventKit object belongs to a different store.
iOS, macOS, visionOS, watchOS EventKit EKError.h
25
EKErrorPriorityIsInvalid
Invalid priority in EventKit.
iOS, macOS, visionOS, watchOS EventKit EKError.h
18
EKErrorRecurringReminderRequiresDueDate
Recurring reminder requires a due date.
iOS, macOS, visionOS, watchOS EventKit EKError.h
20
EKErrorReminderLocationsNotSupported
Reminder locations not supported.
iOS, macOS, visionOS, watchOS EventKit EKError.h
17
EKErrorSourceDoesNotAllowCalendarAddDelete
Event source does not allow adding or deleting calendars.
iOS, macOS, visionOS, watchOS EventKit EKError.h
24
EKErrorSourceDoesNotAllowReminders
Source does not allow reminders in EventKit
iOS, macOS, visionOS, watchOS EventKit EKError.h
10
EKErrorStartDateCollidesWithOtherOccurrence
EventKit start date collides with existing occurrence.
iOS, macOS, visionOS, watchOS EventKit EKError.h
9
EKErrorStartDateTooFarInFuture
Start date is too far in the future.
iOS, macOS, visionOS, watchOS EventKit EKError.h
19
EKErrorStructuredLocationsNotSupported
Structured locations not supported by the event or store.
iOS, macOS, visionOS, watchOS EventKit EKError.h
106
ELAST
Last error code in the system-defined range.
iOS, macOS, tvOS Kernel errno.h
-92
eLenErr
Length error
macOS CarbonCore MacErrors.h
62
ELOOP
Too many symbolic links encountered; directory traversal is blocked.
iOS, macOS, tvOS Kernel errno.h
-14901
eMemoryAllocError
A memory allocation error occurred in Directory Services.
macOS DirectoryService DirServicesTypes.h
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