errors from nsgmls

[dave]

Hello,
    I've got a FreeBSD 5.1 system with docproj-jadetex installed. I've got
the catalog reference lines, as per the fdp-handbook in /etc/profile. I've
sourced that file. Then just to test my setup i did:
cp -r cvs-freebsd dave-article
from a cvsupped doc-all in the en_US.ISO8859-1/articles
area. Then i went in to the dave-article area, which was just a copy of
cvs-freebsd and ran:
nsgmls -s article.sgml
    I got the following errors, checking for the files i find the
directories exist, the files indicated do not. What is going on here?
Thanks.
Dave.
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:54:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amsa.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:61:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amsb.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:68:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amsc.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:75:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amsn.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:82:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amso.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:89:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-amsr.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:96:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-box.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:103:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-cyr1.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:110:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-cyr2.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:117:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-dia.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:124:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-grk1.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:131:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-grk2.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:138:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-grk3.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:145:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-grk4.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:152:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-lat1.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:159:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-lat2.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:166:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-num.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:173:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-pub.gml" (No such file or directory)
nsgmls:/usr/local/share/sgml/docbook/4.1/dbcent.mod:180:0:E: cannot open
"/usr/local/share/sgml/docbook/4.1/iso-tech.gml" (No such file or directory)
nsgmls:article.sgml:33:25:E: general entity "trade" not defined and no
default entity
nsgmls:article.sgml:33:25:E: general entity "reg" not defined and no default
entity
nsgmls:article.sgml:137:12:E: general entity "mdash" not defined and no
default entity
nsgmls:article.sgml:279:35:E: general entity "dollar" not defined and no
default entity