plone.recipe.atcontenttypes generates spurious (?) warnings on running buildout

[T. Kim Nguyen]

I set up plone.recipe.atcontenttypes as described at http://www.uwosh.edu/ploneprojects/documentation/how-tos/how-to-set-file-and-image-size-limits-in-a-zeo-cluster-environment and everything seems to work, but I noticed the following messages when I ran buildout:

[root@plone2 zeocluster 16:35:33]# bin/buildout
Uninstalling unifiedinstaller.
Uninstalling atcontenttypes-conf3.
Uninstalling atcontenttypes-conf2.
Uninstalling atcontenttypes-conf5.
Uninstalling atcontenttypes-conf4.
Uninstalling atcontenttypes-conf1.
Updating plone.
Updating zope2.
Updating productdistros.
Updating zeoserver.
Updating zeoserver-sites1.
Updating zeoserver-sites2.
Updating zeoserver-sites3.
Updating client1.
Updating client2.
Updating client3.
Updating client4.
Updating client5.
Updating zopepy.
Installing atcontenttypes-client1.
The atcontenttypes-client1 install returned None. A path or iterable os paths should be returned.
Installing atcontenttypes-client5.
The atcontenttypes-client5 install returned None. A path or iterable os paths should be returned.
Installing atcontenttypes-client4.
The atcontenttypes-client4 install returned None. A path or iterable os paths should be returned.
Installing atcontenttypes-client3.
The atcontenttypes-client3 install returned None. A path or iterable os paths should be returned.
Installing atcontenttypes-client2.
The atcontenttypes-client2 install returned None. A path or iterable os paths should be returned.
Updating chown.
chown: Running
chmod 600 .installed.cfg
touch /opt/Plone-3.1-01/zeocluster/var/log/zeoserver.log
touch /opt/Plone-3.1-01/zeocluster/var/log/zeoserver-sites1.log
touch /opt/Plone-3.1-01/zeocluster/var/log/zeoserver-sites2.log
touch /opt/Plone-3.1-01/zeocluster/var/log/zeoserver-sites3.log
find /opt/Plone-3.1-01/zeocluster -type d -name var -exec chown -R plone \{\} \;
find /opt/Plone-3.1-01/zeocluster -type d -name LC_MESSAGES -exec chown -R plone \{\} \;
find /opt/Plone-3.1-01/zeocluster -name runzope -exec chown plone \{\} \;
Installing unifiedinstaller.
Generated script '/opt/Plone-3.1-01/zeocluster/bin/plonectl'.
Updating flash.
writing flash streaming settings for client /opt/Plone-3.1-01/zeocluster/parts/client1/etc/plone-flashstreamingserver.conf
writing flash streaming settings for client /opt/Plone-3.1-01/zeocluster/parts/client2/etc/plone-flashstreamingserver.conf
writing flash streaming settings for client /opt/Plone-3.1-01/zeocluster/parts/client4/etc/plone-flashstreamingserver.conf
writing flash streaming settings for client /opt/Plone-3.1-01/zeocluster/parts/client5/etc/plone-flashstreamingserver.conf
writing flash streaming settings for client /opt/Plone-3.1-01/zeocluster/parts/client3/etc/plone-flashstreamingserver.conf
Updating precompile.
  precompiling python scripts in /opt/Plone-3.1-01/zeocluster/products
  precompiling python scripts in /opt/Plone-3.1-01/zeocluster/parts/productdistros
  precompiling python scripts in /opt/Plone-3.1-01/zeocluster/parts/plone
  precompiling python scripts in /UWO/Plone-3.1-01/Products

Just wondering if this is something to worry about or if maybe has a simple fix.