[Zope-dev] conflict error

Hello, how can the error be corrected? ./bin/easy_install -U zcontact Searching for zcontact Reading http://pypi.python.org/simple/zcontact/ Reading http://launchpad.net/zcontact Best match: zcontact 0.1.0a9 Processing zcontact-0.1.0a9-py2.4.egg zcontact 0.1.0a9 is already the active version in easy-install.pth Using /home/peter/p007-zcontact-demo/lib/python2.4/site-packages/zcontact-0.1.0a9-py2.4.egg Reading http://download.zope.org/zope3.4 Processing dependencies for zcontact error: Installed distribution zope.traversing 3.4.0 conflicts with requirement zope.traversing>=3.5.0a1.dev-r78730 Peter