Maintainer: ‘Andreas Pfeiffer <apfeiffer1@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Andreas",
                    family = "Pfeiffer",
                    role = c("aut", "cre"),
                    email = "apfeiffer1@gmail.com")
as necessary.
Maintainer: ‘Andreas Pfeiffer <apfeiffer1@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Andreas",
                    family = "Pfeiffer",
                    role = c("aut", "cre"),
                    email = "apfeiffer1@gmail.com")
as necessary.