Maintainer: ‘Qin Wenfeng <mail@qinwenfeng.com>’

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

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Qin",
                    family = "Wenfeng",
                    role = c("aut", "cre"),
                    email = "mail@qinwenfeng.com")
as necessary.