Maintainer: ‘David J. Harris <DavHarris@UCDavis.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = c("David", "J."),
                    family = "Harris",
                    role = c("aut", "cre"),
                    email = "DavHarris@UCDavis.edu")
as necessary.

The Date field is not in ISO 8601 yyyy-mm-dd format.
Maintainer: ‘David J. Harris <DavHarris@UCDavis.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = c("David", "J."),
                    family = "Harris",
                    role = c("aut", "cre"),
                    email = "DavHarris@UCDavis.edu")
as necessary.

The Date field is not in ISO 8601 yyyy-mm-dd format.