Did you create an iost account?
And you also can't import it in iwallet? Chrome extension.
https://twitter.com/0xsmoky/status/1655613779147890694?s=19
https://twitter.com/IOST_Official/status/1457963543039467520?s=20
https://twitter.com/iost_official/status/1443411092986679301?s=21