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
-5400
qtsBadSelectorErr
Unknown or invalid selector used in QuickTime.
macOS CarbonCore MacErrors.h
-5401
qtsBadStateErr
Bad state error in QuickTime Streaming.
macOS CarbonCore MacErrors.h
-5420
qtsConnectionFailedErr
Connection to QuickTime Streaming failed.
macOS CarbonCore MacErrors.h
-5408
qtsTimeoutErr
QuickTime session timed out.
macOS CarbonCore MacErrors.h
-5406
qtsTooMuchDataErr
QuickTime: too much data error.
macOS CarbonCore MacErrors.h
-5407
qtsUnknownValueErr
QuickTime unknown value error.
macOS CarbonCore MacErrors.h
-5403
qtsUnsupportedDataTypeErr
QuickTime unsupported data type error.
macOS CarbonCore MacErrors.h
-5405
qtsUnsupportedFeatureErr
Unsupported feature in QuickTime Streaming.
macOS CarbonCore MacErrors.h
-5404
qtsUnsupportedRateErr
The requested rate is unsupported in QuickTime.
macOS CarbonCore MacErrors.h
-30554
qtvrLibraryLoadErr
Failed to load or initialize the QuickTime VR library.
macOS CarbonCore MacErrors.h
-30555
qtvrUninitialized
QuickTime VR was not properly initialized before use.
macOS CarbonCore MacErrors.h
-2159
qtXMLApplicationErr
QuickTime XML application error.
macOS CarbonCore MacErrors.h
-2158
qtXMLParseErr
Parsing QuickTime XML data failed.
macOS CarbonCore MacErrors.h
-203
queueFull
Queue is full or capacity reached.
macOS CarbonCore MacErrors.h
-809
rcDBAsyncNotSupp
Asynchronous database operations are not supported.
macOS CarbonCore MacErrors.h
-810
rcDBBadAsyncPB
Invalid async parameter block in resource database.
macOS CarbonCore MacErrors.h
-808
rcDBBadDDEV
Resource database bad DDEV error.
macOS CarbonCore MacErrors.h
-806
rcDBBadSessID
Invalid session ID in resource database.
macOS CarbonCore MacErrors.h
-807
rcDBBadSessNum
Invalid session number in resource database.
macOS CarbonCore MacErrors.h
-803
rcDBBadType
Bad type in database operation.
macOS CarbonCore MacErrors.h
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