Can't install zlib

[rrichardson@…]

Getting the following when installing zlib on XServe, running Server 10.5.8. Worked on identical server last week. Have verified that no internet filtering is taking place, so I can't understand why it's receiving an HTML file.

squidm:~ squid$ sudo port install zlib
Password:
--->  Verifying checksum(s) for zlib
Error: Checksum (md5) mismatch for zlib-1.2.5.tar.bz2
Error: Checksum (sha1) mismatch for zlib-1.2.5.tar.bz2
Error: Checksum (rmd160) mismatch for zlib-1.2.5.tar.bz2
***
The non-matching file appears to be HTML. See this page for possible reasons
for the checksum mismatch:
<https://trac.macports.org/wiki/MisbehavingServers>
***
Error: Target org.macports.checksum returned: Unable to verify file checksums
Log for zlib is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_archivers_zlib/zlib/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>
squidm:~ squid$

[macsforever2000@…]

Please read the FAQ on checksum errors. You did not provide the mirror used to download the archive.

[ryandesign@…]

Ron sent the following response by email:

Looks like updating the ports tree fixed the issue.

Thanks.