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
-3031
badTranslationSpecErr
Translation specification is invalid or corrupt.
macOS CarbonCore MacErrors.h
-21
badUnitErr
Bad unit error.
macOS CarbonCore MacErrors.h
56
BAErrorCodeCallerConnectionInvalid
Invalid caller connection in BackgroundAssets.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
55
BAErrorCodeCallerConnectionNotAccepted
Caller connection was not accepted
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
50
BAErrorCodeCallFromExtensionNotAllowed
Background Assets operation not allowed from extension.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
51
BAErrorCodeCallFromInactiveProcessNotAllowed
Call not allowed from an inactive process.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
103
BAErrorCodeDownloadAlreadyFailed
BackgroundAssets download has already failed.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
100
BAErrorCodeDownloadAlreadyScheduled
Background Assets download already scheduled.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
111
BAErrorCodeDownloadBackgroundActivityProhibited
Download prohibited by background activity restriction.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
109
BAErrorCodeDownloadEssentialDownloadNotPermitted
Essential download not permitted.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
102
BAErrorCodeDownloadFailedToStart
Background assets download failed to start.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
0
BAErrorCodeDownloadInvalid
Invalid download in BackgroundAssets.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
101
BAErrorCodeDownloadNotScheduled
BackgroundAssets: download not scheduled.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
112
BAErrorCodeDownloadWouldExceedAllowance
BackgroundAssets: download would exceed allowance.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
204
BAErrorCodeSessionDownloadAllowanceExceeded
Background Assets session exceeded the download allowance.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
203
BAErrorCodeSessionDownloadDisallowedByAllowance
BackgroundAssets session download disallowed by allowance.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
202
BAErrorCodeSessionDownloadDisallowedByDomain
Download is disallowed by the domain policy.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
206
BAErrorCodeSessionDownloadNotPermittedBeforeAppLaunch
Session download not permitted before app launch.
iOS, macOS, visionOS, watchOS BackgroundAssets BAError.h
-37
bdNamErr
Bad name in the file system
macOS CarbonCore MacErrors.h
3
BGTaskSchedulerErrorCodeNotPermitted
Background task scheduler not permitted.
iOS, macOS, tvOS, visionOS, watchOS BackgroundTasks BGTaskScheduler.h
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