Maintainer: ‘Hongfei Liu <lhf563@126.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Hongfei",
                    family = "Liu",
                    role = c("aut", "cre"),
                    email = "lhf563@126.com")
as necessary.
Maintainer: ‘Hongfei Liu <lhf563@126.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Hongfei",
                    family = "Liu",
                    role = c("aut", "cre"),
                    email = "lhf563@126.com")
as necessary.