Global Variable

NSURLErrorTimedOut

An asynchronous operation timed out.

Declaration

var NSURLErrorTimedOut: Int { get }

Discussion

URLSession sends this error to its delegate when the timeoutInterval of an NSURLRequest expires before a load can complete.

See Also

URL Errors

var NSURLErrorAppTransportSecurityRequiresSecureConnection: Int

App Transport Security disallowed a connection because there is no secure network connection.

var NSURLErrorBackgroundSessionInUseByAnotherProcess: Int

An app or app extension attempted to connect to a background session that is already connected to a process.

var NSURLErrorBackgroundSessionRequiresSharedContainer: Int

The shared container identifier of the URL session configuration is needed but hasn’t been set.

var NSURLErrorBackgroundSessionWasDisconnected: Int

The app is suspended or exits while a background data task is processing.

var NSURLErrorBadServerResponse: Int

The URL Loading System received bad data from the server.

var NSURLErrorBadURL: Int

A malformed URL prevented a URL request from being initiated.

var NSURLErrorCallIsActive: Int

A connection was attempted while a phone call was active on a network that doesn’t support simultaneous phone and data communication, such as EDGE or GPRS.

var NSURLErrorCancelled: Int

An asynchronous load has been canceled.

var NSURLErrorCannotCloseFile: Int

A download task couldn’t close the downloaded file on disk.

var NSURLErrorCannotConnectToHost: Int

An attempt to connect to a host failed.

var NSURLErrorCannotCreateFile: Int

A download task couldn’t create the downloaded file on disk because of an I/O failure.

var NSURLErrorCannotDecodeContentData: Int

Content data received during a connection request had an unknown content encoding.

var NSURLErrorCannotDecodeRawData: Int

Content data received during a connection request couldn’t be decoded for a known content encoding.

var NSURLErrorCannotFindHost: Int

The host name for a URL couldn’t be resolved.

var NSURLErrorCannotLoadFromNetwork: Int

A specific request to load an item only from the cache couldn't be satisfied.

var NSURLErrorCannotMoveFile: Int

A downloaded file on disk couldn’t be moved.

var NSURLErrorCannotOpenFile: Int

A downloaded file on disk couldn’t be opened.

var NSURLErrorCannotParseResponse: Int

A response to a connection request couldn’t be parsed.

var NSURLErrorCannotRemoveFile: Int

A downloaded file couldn’t be removed from disk.

var NSURLErrorCannotWriteToFile: Int

A download task couldn’t write the file to disk.

var NSURLErrorClientCertificateRejected: Int

A server certificate was rejected.

var NSURLErrorClientCertificateRequired: Int

A client certificate was required to authenticate an SSL connection during a connection request.

var NSURLErrorDNSLookupFailed: Int

The host address couldn’t be found via DNS lookup.

var NSURLErrorDataLengthExceedsMaximum: Int

The length of the resource data exceeded the maximum allowed.

var NSURLErrorDataNotAllowed: Int

The cellular network disallowed a connection.

var NSURLErrorDownloadDecodingFailedMidStream: Int

A download task failed to decode an encoded file during the download.

var NSURLErrorDownloadDecodingFailedToComplete: Int

A download task failed to decode an encoded file after downloading.

var NSURLErrorFileDoesNotExist: Int

The specified file doesn’t exist.

var NSURLErrorFileIsDirectory: Int

A request for an FTP file resulted in the server responding that the file is not a plain file, but a directory.

var NSURLErrorFileOutsideSafeArea: Int

An internal file operation failed.

var NSURLErrorHTTPTooManyRedirects: Int

A redirect loop was detected or the threshold for number of allowable redirects was exceeded (currently 16).

var NSURLErrorInternationalRoamingOff: Int

The attempted connection required activating a data context while roaming, but international roaming is disabled.

var NSURLErrorNetworkConnectionLost: Int

A client or server connection was severed in the middle of an in-progress load.

var NSURLErrorNoPermissionsToReadFile: Int

A resource couldn’t be read because of insufficient permissions.

var NSURLErrorNotConnectedToInternet: Int

A network resource was requested, but an internet connection has not been established and can’t be established automatically.

var NSURLErrorRedirectToNonExistentLocation: Int

A redirect was specified by way of server response code, but the server didn’t accompany this code with a redirect URL.

var NSURLErrorRequestBodyStreamExhausted: Int

A body stream was needed but the client did not provide one.

var NSURLErrorResourceUnavailable: Int

A requested resource couldn’t be retrieved.

var NSURLErrorSecureConnectionFailed: Int

An attempt to establish a secure connection failed for reasons that can’t be expressed more specifically.

var NSURLErrorServerCertificateHasBadDate: Int

A server certificate is expired, or is not yet valid.

var NSURLErrorServerCertificateHasUnknownRoot: Int

A server certificate wasn’t signed by any root server.

var NSURLErrorServerCertificateNotYetValid: Int

A server certificate isn’t valid yet.

var NSURLErrorServerCertificateUntrusted: Int

A server certificate was signed by a root server that isn’t trusted.

var NSURLErrorUnknown: Int

The URL Loading System encountered an error that it can’t interpret.

var NSURLErrorUnsupportedURL: Int

A properly formed URL couldn’t be handled by the framework.

var NSURLErrorUserAuthenticationRequired: Int

Authentication was required to access a resource.

var NSURLErrorUserCancelledAuthentication: Int

An asynchronous request for authentication has been canceled by the user.

var NSURLErrorZeroByteResource: Int

A server reported that a URL has a non-zero content length, but terminated the network connection gracefully without sending any data.

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