FreeBSD web build failed on www.freebsd.org

[World Wide Web Owner]

install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.2.1R/relnotes-i386.html /usr/local/www/www.freebsd.org/data/ja/releases/5.2.1R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.2.1R/relnotes-pc98.html /usr/local/www/www.freebsd.org/data/ja/releases/5.2.1R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.2.1R/relnotes-sparc64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.2.1R
===> ../ja/releases/5.3R
/usr/bin/perl5: not found
"/w/www/build/www/ja/releases/5.3R/../../../share/mk/web.site.mk", line 195: warning: "echo ja/releases/5.3R |  /usr/bin/perl5 -pe 's@[^/]+ at ..@g; $_.="/." if($_ eq".."); s@^\.\./@@;'" returned non-zero status
/usr/bin/perl5: not found
"/w/www/build/www/ja/releases/5.3R/../../../share/mk/web.site.mk", line 196: warning: "echo ja/releases/5.3R | /usr/bin/perl5 -pe 's@^[^/]+/?@@;'" returned non-zero status
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/docbook.css /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-alpha.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-amd64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-ia64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-i386.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-pc98.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.3R/hardware-sparc64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.3R
===> ../ja/releases/5.4R
/usr/bin/perl5: not found
"/w/www/build/www/ja/releases/5.4R/../../../share/mk/web.site.mk", line 195: warning: "echo ja/releases/5.4R |  /usr/bin/perl5 -pe 's@[^/]+ at ..@g; $_.="/." if($_ eq".."); s@^\.\./@@;'" returned non-zero status
/usr/bin/perl5: not found
"/w/www/build/www/ja/releases/5.4R/../../../share/mk/web.site.mk", line 196: warning: "echo ja/releases/5.4R | /usr/bin/perl5 -pe 's@^[^/]+/?@@;'" returned non-zero status
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/docbook.css /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-alpha.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-amd64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-ia64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-i386.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-pc98.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/releases/5.4R/hardware-sparc64.html /usr/local/www/www.freebsd.org/data/ja/releases/5.4R
===> ../ja/smp
/usr/bin/perl5: not found
"/w/www/build/www/ja/smp/../../share/mk/web.site.mk", line 195: warning: "echo ja/smp |  /usr/bin/perl5 -pe 's@[^/]+ at ..@g; $_.="/." if($_ eq".."); s@^\.\./@@;'" returned non-zero status
/usr/bin/perl5: not found
"/w/www/build/www/ja/smp/../../share/mk/web.site.mk", line 196: warning: "echo ja/smp | /usr/bin/perl5 -pe 's@^[^/]+/?@@;'" returned non-zero status
install -C   -o www -g wwwadm -m 664 /w/www/build/www/ja/smp/index.html /usr/local/www/www.freebsd.org/data/ja/smp
===> ../ja/ports
/bin/cp /usr/local/www/ports/INDEX-6 INDEX
/bin/rm -f *.sgml
/usr/bin/perl5 /w/www/build/www/ja/ports/portindex INDEX /w/www/build/www/ja/ports
/usr/bin/perl5:No such file or directory
*** Error code 1

Stop in /w/www/build/www/ja/ports.
*** Error code 1

Stop in /w/www/build/www/ja.
*** Error code 1

Stop in /w/www/build/www/en.
      340.17 real       147.14 user        76.62 sys