I'm getting the below error while building freebsd-12 image http://pkg.freebsd.org/ - EOL - freebsd12

==> amazon-ebs.buildkite-omnibus-freebsd-12-amd64: pkg: Error fetching <http://pkg.FreeBSD.org/FreeBSD:12:amd64/quarterly/Latest/pkg.txz>: Not Found

==> amazon-ebs.buildkite-omnibus-freebsd-12-amd64: A pre-built version of pkg could not be found for your system.

amazon-ebs.buildkite-omnibus-freebsd-12-amd64: Bootstrapping pkg from pkg+<http://pkg.FreeBSD.org/FreeBSD:12:amd64/quarterly>, please wait...

==> amazon-ebs.buildkite-omnibus-freebsd-12-amd64: Consider changing PACKAGESITE or installing it from ports: 'ports-mgmt/pkg'.