UsernameExistsException constructor
UsernameExistsException(})
Exception thrown when the requested service encounters a user name that already exists in the user pool.
Implementation
UsernameExistsException(String message,
{String? recoverySuggestion, String? underlyingException})
: super(message,
recoverySuggestion: recoverySuggestion,
underlyingException: underlyingException);