ssh-add -A (deprecated)

ssh-add -A
WARNING: The -K and -A flags are deprecated and have been replaced
        by the --apple-use-keychain and --apple-load-keychain
        flags, respectively.  To suppress this warning, set the
        environment variable APPLE_SSH_ADD_BEHAVIOR as described in
        the ssh-add(1) manual page.
No identity found in the keychain.

ssh-add -A
No identity found in the keychain.

ssh-add [ -K | --help ]