I am using Ubuntu 10.10 Maverick Meerkat and live in Nepal, timezone Asia/Kathmandu. I have been trying to setup Plone CMS in my local computer for learning to build sites with Zope/Plone. However, I had been getting errors.
I installed Plone 3.3.5 on my Ubuntu 10.10 Maverick Meerkat 64bit Desktop with Plone Unified Installer – for Linux/BSD/OS X/UNIX/Solaris. The installation was successful.
Then I ran the instance of Zope by changing directory to where my Plone is installed and running the following in terminal:
cd /usr/local/Plone sudo ./bin/instance fg
Then I could browse the url http://localhost:8080/manage (I had changed the port number to 8888 ).
However, when I tried to create a Plone Site using Zope interface, I got the following error:
Site Error
An error was encountered while publishing this resource.
Error Type: KeyError
Error Value: ”
I see the following error in the terminal:
Module DateTime.DateTime, line 1145, in toZone
KeyError: ”
Unhandled exception in thread started by
Traceback (most recent call last):
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/ZServer/PubCore/ZServerPublisher.py”, line 25, in __init__
response=b)
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/ZPublisher/Publish.py”, line 401, in publish_module
environ, debug, request, response)
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/ZPublisher/Publish.py”, line 227, in publish_module_standard
if request is not None: request.close()
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/ZPublisher/BaseRequest.py”, line 211, in close
notify(EndRequestEvent(None, self))
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/zope/event/__init__.py”, line 23, in notify
subscriber(event)
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/zope/component/event.py”, line 26, in dispatch
for ignored in zope.component.subscribers(event, None):
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/zope/component/_api.py”, line 130, in subscribers
return sitemanager.subscribers(objects, interface)
File “/usr/local/Plone/Zope-2.10.11-final-py2.4/lib/python/zope/component/registry.py”, line 290, in subscribers
return self.adapters.subscribers(objects, provided)
AttributeError: adapters
I tried adding the following in buildout.cfg under instance section:
zope-conf-additional =
TZ Asia/Katmandu
as instructed here and running buildout again but this did not work for me as I got the same error again.
I then installed Ubuntu 10.04 Lucid Lynx 32bit Server in Virtualbox and installed Plone again. This time I used Python 2.4 from Hardy repository rather than having it built by Plone installer. I used the tutorial here for rest of the stuff. But I got the same error again.
I then thought it was a Ubuntu specific issue and then installed CentOS 5.5 minimal in Virtualbox and installed Plone again. This did not work either. The same error appeared.
I then installed Plone 4 using Python 2.6 but the same error appears in instance.log.
Workaround
In the Virtualbox installation of Ubuntu 10.04, I changed the timezone to Asia/Alaska and then the problem was gone. To do so, I did the following:
sudo dpkg-reconfigure tzdata
And then I selected US, Alaska. I then changed the buildout.c
I changed buildout.cfg to reflect the change in timezone:
zope-conf-additional =
TZ US/Alaska
and ran buildout again.
sudo ./bin/buildout
Then the error no longer shows and I can create page.
I don’t know if it is a python issue, or Datetime bug. I will dig into it later. But for now, Plone works.
