SFSpeechRecognitionTask.error error code comparison table

Annotated the common error comparison table in the iOS speech recognition engine

error

An error object that specifies the error that occurred during a speech recognition task.

iOS 10.0+ macOS 10.15+ Mac Catalyst 13.1+ 

Declaration 

@property(nonatomic, readonly, copy, nullable) NSError *error;

Discussion

The system may return one of the errors listed in the table below.

Error Code	Error Domain	Description
102	kLSRErrorDomain	Assets are not installed. // Assets are not installed
201	kLSRErrorDomain	Siri or Dictation is disabled. // Siri or Dictation 被禁用
300	kLSRErrorDomain	Failed to initialize recognizer. // Initialization failed
301	kLSRErrorDomain	Request was canceled. // request cancellation - common
203	kAFAssistantErrorDomain	Failure occurred during speech recognition. // Speech recognition failed
1100	kAFAssistantErrorDomain	Trying to start recognition while an earlier instance is still active. // Trying to recognize, but the previous instance is still active. (Not triggered)
1101	kAFAssistantErrorDomain	Connection to speech process was invalidated. // The connection is invalid
1107	kAFAssistantErrorDomain	Connection to speech process was interrupted. // The connection was interrupted - it appeared when the App entered the background
1110	kAFAssistantErrorDomain	Failed to recognize any speech. // Unable to recognize speech - common
1700	kAFAssistantErrorDomain	Request is not authorized. // Set the permission to open

These also return :

Error Domain=NSURLErrorDomain Code=-1017  cannot parse response.

Error Domain=NSURLErrorDomain Code=-1001  The request timed out.