I'm trying to develop/debug a python product in Zope 2.6.0, and I can no longer see meaningful error messages or tracebacks. When an error occurs, I get a "Site Error" page with a traceback, but the traceback is for the following error: AttributeError: __error_log__ I'm guessing Zope can't find its fancy new error_log, but the result is I can't see what's actually going wrong with my product. If I look inside the error_log object on my Zope, the Exception Type is "NotFound", but the exception value is a big bunch of html markup: <TABLE BORDER="0" WIDTH="100%"> <TR VALIGN="TOP"> <TD WIDTH="10%" ALIGN="CENTER">   </TD> <TD WIDTH="90%"> <H2>Site Error</H2> <P>An error was encountered while publishing this resource. </P> <P><STRONG>Resource not found</STRONG></P> Sorry, the requested resource does not exist.<p>Check the URL and try again.</p><p><b>Resource:</b> Integration instance at 8f5cbf0</p> <HR NOSHADE> <P>Troubleshooting Suggestions</P> <UL> <LI>The URL may be incorrect.</LI> <LI>The parameters passed to this resource may be incorrect.</LI> <LI>A resource that this resource relies on may be encountering an error.</LI> </UL> <P>For more detailed information about the error, please refer to the HTML source for this page. </P> <P>If the error persists please contact the site maintainer. Thank you for your patience. </P> </TD></TR> </TABLE> What's going on here? How can I get a real traceback? I notice there was a traceback-related query on this list last week (http://lists.zope.org/pipermail/zope/2002-November/125944.html), but no answer was given - is no one else having this problem? TIA, Felix.