我在我的克隆网站上集成了collective.documenviewer。这用于在线查看 PDF 和其他办公文件。
可选的附加产品之一是 plone.app.async，它又使用 zc.async。现在，安装顺利，没有错误。但是当我保存文件时，会产生一个我无法弄清楚的错误：以下是错误：
2012-08-29T12:52:03 ERROR collective.documentviewer Error using plone.app.async with collective.documentviewer. Converting pdf without plone.app.async...
Traceback (most recent call last):
File "/home/frank/apps/myplonesite/plone/eggs/collective.documentviewer-2.2a1-py2.7.egg/collective/documentviewer/async.py", line 143, in queueJob
runner = JobRunner(object)
File "/home/frank/apps/myplonesite/plone/eggs/collective.documentviewer-2.2a1-py2.7.egg/collective/documentviewer/async.py", line 50, in __init__
self.queue = self.async.getQueues()['']
File "/home/frank/apps/myplonesite/plone/eggs/plone.app.async-1.2-py2.7.egg/plone/app/async/service.py", line 100, in getQueues
return self._conn.root()[KEY]
File "/home/frank/apps/myplonesite/plone/../../python27/lib/python2.7/UserDict.py", line 23, in __getitem__
raise KeyError(key)
KeyError: 'zc.async'
这些是我正在使用的版本：
plone.app.async = 1.2
zc.async = 1.5.4
我该如何解决这个KeyError问题？
更新：下面是我的扩建
[buildout]
newest = false
allow-picked-versions = false
index = http://dist.candid.org/candid
extends =
versions.cfg
parts =
lxml
svneggs
svnproducts
zeo
instance
worker
paster
plonesite
versions = versions
find-links =
http://dist.candid.org/candid
develop =
../src/candid.main
../src/ploned.ui
../src/z3c.traverser
../src/repoze.whooze
../src/marginalia
../src/ore.alchemist
../src/alchemist.ui
../src/alchemist.catalyst
../src/alchemist.traversal
../src/alchemist.security
../src/portal.auth
eggs =
Plone
Products.PloneHelpCenter
Products.LinguaPlone
candid
alchemist.ui
alchemist.catalyst
alchemist.traversal
alchemist.security
ploned.ui
candidcms.plonepas
candidcms.policy
candidcms.theme
psycopg2
Products.Scrawl
collective.contacts
collective.tabr
candidcms.workspaces
lotr.repository
archetypes.multifile
Products.ATVocabularyManager
collective.dynatree
collective.portlet.explore
z3c.json
collective.js.jqueryui
python-cjson
collective.plonetruegallery
lotr.templates
portal.auth
Products.PloneFormGen
quintagroup.pfg.captcha
collective.documentviewer
five.intid
plone.app.async
zcml =
candidcms.plonepas
candidcms.policy
candidcms.theme
candid.portal
candidcms.workspaces
archetypes.multifile
lotr.templates
collective.contacts
collective.tabr
collective.portlet.explore
[instance]
recipe = plone.recipe.zope2instance
user = uadmin:uadmin
eggs =
${buildout:eggs}
Products.CMFPlone
Paste
PasteScript
PasteDeploy
repoze.tm2
repoze.retry
repoze.who
zcml =
${buildout:zcml}
zcml-additional =
<include package="plone.app.async" file="single_db_instance.zcml" />
environment-vars =
ZC_ASYNC_UUID ${buildout:directory}/var/instance-uuid.txt
products =
${svnproducts:location}
# !+XAPIAN PATH(mn, apr-2012) hardcoded path to candid xapian installation
# temporary fix because plone uses the 'candid.portal' package which is in the
# candid.main package. Once the candid.portal package is factored out this entry
# should be removed.
extra-paths =
../parts/xapian/lib/python
[lxml]
recipe = z3c.recipe.staticlxml
egg = lxml
force = false
build-libxslt = true
build-libxml2 = true
libxslt-url = http://candid-portal.googlecode.com/files/libxslt-1.1.24.tar.gz
libxml2-url = http://candid-portal.googlecode.com/files/libxml2-2.6.32.tar.gz
[svnproducts]
recipe = infrae.subversion
urls =
http://candid-portal.googlecode.com/svn/plone.products/CandidHelpCenter/branches/plone4 CandidHelpCenter
[svneggs]
recipe = infrae.subversion
as_eggs = true
urls =
http://candid-portal.googlecode.com/svn/plone.products/candidcms.plonepas/trunk/ candidcms.plonepas
http://candid-portal.googlecode.com/svn/plone.products/candidcms.policy/trunk/ candidcms.policy
http://candid-portal.googlecode.com/svn/plone.products/candidcms.theme/trunk/ candidcms.theme
http://candid-portal.googlecode.com/svn/plone.products/candidcms.workspaces/trunk/ candidcms.workspaces
http://lotr.googlecode.com/svn/lab/apps/lotr.repository/ lotr.repository
http://lotr.googlecode.com/svn/trunk/products/lotr.templates/ lotr.templates
[paster]
recipe = zc.recipe.egg
eggs = ${instance:eggs}
# !+XAPIAN PATH(mn, apr-2012) hardcoded path to candid xapian installation
extra-paths =
../parts/xapian/lib/python
scripts = paster
[zeo]
recipe = plone.recipe.zeoserver
file-storage = ${buildout:directory}/var/filestorage/Data.fs
blob-storage = ${buildout:directory}/var/blobstorage
eggs = ${instance:eggs}
[worker]
recipe = plone.recipe.zope2instance
user = ${instance:user}
eggs = ${instance:eggs}
zcml = ${instance:zcml}
zserver-threads = 2
debug-mode = on
verbose-security = on
zeo-client = true
blob-storage = ${zeo:blob-storage}
shared-blob = on
eggs = ${instance:eggs}
zcml-additional =
<include package="plone.app.async" file="single_db_worker.zcml" />
environment-vars =
ZC_ASYNC_UUID ${buildout:directory}/var/worker-uuid.txt
[plonesite]
recipe = collective.recipe.plonesite
site-id = plone
admin-user = uadmin
instance = instance
profiles-initial =
Products.CMFPlone:dependencies
Products.CMFPlone:plone-content
lotr.repository:default
candidcms.policy:default
candidcms.theme:default
collective.dynatree:default
candidcms.workspaces:default
lotr.templates:default
Products.FacultyStaffDirectory:default
Products.PlonePopoll:default
Products.PloneFormGen:default
quintagroup.pfg.captcha:default
collective.documentviewer:default
products-initial =
Products.CMFPlone
archetypes.multifile
candidHelpCenter
LinguaPlone
collective.plonetruegallery
collective.tabr
Products.PloneFormGen
quintagroup.pfg.captcha