apr: apr-1.4.8.tar.bz2 does not exist in /opt/local/var/macports/distfiles/apr

[gdeale@…]

Following command sudo port install mmap

--->  Computing dependencies for nmap
--->  Dependencies to be installed: apr libpcap openssl subversion apr-util db46 db_select sqlite3 cyrus-sasl2 kerberos5 libcomerr libmagic serf1 scons python27 python_select
--->  Verifying checksums for apr
Error: org.macports.checksum for port apr returned: apr-1.4.8.tar.bz2 does not exist in /opt/local/var/macports/distfiles/apr
Error: Failed to install apr
Please see the log file for port apr for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_apr/apr/main.log
Error: The following dependencies were not installed: apr libpcap openssl subversion apr-util db46 db_select sqlite3 cyrus-sasl2 kerberos5 libcomerr libmagic serf1 scons python27 python_select
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port nmap failed
$ sudo port install apr
--->  Verifying checksums for apr
Error: org.macports.checksum for port apr returned: apr-1.4.8.tar.bz2 does not exist in /opt/local/var/macports/distfiles/apr
Please see the log file for port apr for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_apr/apr/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port apr failed

--- Output from vi /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_apr/apr/main.log

version:1
:debug:main apr has no conflicts
:debug:main Executing org.macports.main (apr)
:debug:main changing euid/egid - current euid: 0 - current egid: 0
:debug:main egid changed to: 501
:debug:main euid changed to: 502
:debug:main Skipping completed org.macports.archivefetch (apr)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.fetch (apr)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:checksum checksum phase started at Fri Nov  8 13:47:02 CST 2013
:notice:checksum --->  Verifying checksums for apr
:debug:checksum Executing org.macports.checksum (apr)
:info:checksum --->  Checksumming apr-1.4.8.tar.bz2
:error:checksum org.macports.checksum for port apr returned: apr-1.4.8.tar.bz2 does not exist in /opt/local/var/macports/distfiles/apr
:debug:checksum Error code: NONE
:debug:checksum Backtrace: apr-1.4.8.tar.bz2 does not exist in /opt/local/var/macports/distfiles/apr
    while executing
"$procedure $targetname"

[larryv (Lawrence Velázquez)]

This build attempt wasn’t clean, as indicated by the “Skipping completed” lines. Please ​clean, try again, and attach the entire main.log if it fails. (Do not paste the log inline.)

sudo port clean --all nmap apr
sudo port install nmap

[ryandesign (Ryan Carsten Schmidt)]

Cleaning and trying again will resolve this issue.