Yuanhao Li wrote at 2004-3-30 13:54 +0200:

I am new to zope. I try to install Pruduct Zope Tutorial, but got the error "The ZGadflyDA product must be installed!".How can i solve it?

This is strange, as "ZGadflyDA" is (usually) part of the Zope distribution. Check "../lib/python/Products". It should contain a "ZGadflyDA" folder. If it does, activate Zope logging (how this works depends on what Zope version you use) and lock into the log file. -- Dieter