I have been trying to create a site making use of the #tree tag. To get started I tried to follow the "Inplementing a navigation tree" section of the Zbook tutorials, although I have removed some superfluous stuff in an effort to track down the bug. Everything seems to display correctly when I initially view the page (a tree of my "Outline" folder is displayed), however whenever I click on any of the sub-folders I get the error which you can find at the end of this email. Here is my "ll_menu" code (I suspect the problem is in here somewhere): <SPAN CLASS="tree"> <!--#tree Outline branches_expr="objectValues(['Folder', 'DTML Document'])" nowrap=1 sort=id--> <!--#if expr="meta_type == 'Folder'"--> <dtml-var id> <!--#else--> <A HREF="<!--#var "Outline.absolute_url()"-->/<!--#var tree-item-url-->?<!--#if tree-s-->tree-s=<!--#var tree-s--><!--#/if--><!--#if tree-e-->&tree-e=<!--#var tree-e--><!--#/if--><!--#if tree-c-->&tree-c=<!--#var tree-c--><!--#/if-->"><!--#var title_or_id--></a> <!--#/if--> <!--#/tree--> </SPAN> Can anyone give me a pointer as to what is going wrong? Any help would be much appreciated, this problem is giving me a headache! Also, on a general point - is there any effort being made to make the error reporting system more newbie friendly? Ian. Traceback (innermost last): File /home/zope/Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /home/zope/Zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /home/zope/Zope/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File /home/zope/Zope/lib/python/ZPublisher/Publish.py, line 165, in publish File /home/zope/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: main) File /home/zope/Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: main) File /home/zope/Zope/lib/python/OFS/DTMLDocument.py, line 166, in __call__ (Object: main) File /home/zope/Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: main) File /home/zope/Zope/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: standard_html_header) File /home/zope/Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: standard_html_header) File /home/zope/Zope/lib/python/OFS/DTMLDocument.py, line 162, in __call__ (Object: ll_menu) File /home/zope/Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: ll_menu) File /home/zope/Zope/lib/python/TreeDisplay/TreeTag.py, line 151, in render (Object: Outline) AttributeError: __call__ -- Ian Clarke Email: I.Clarke@strs.co.uk Homepage: http://www.gnu.demon.co.uk/ Also see: http://freenet.on.openprojects.net/ "All we see and all we seem is but a dream within a dream" _______________________________________________ Zope maillist - Zope@zope.org http://www.zope.org/mailman/listinfo/zope (Related lists - please, no cross posts or HTML encoding! To receive general Zope announcements, see: http://www.zope.org/mailman/listinfo/zope-announce For developer-specific issues, zope-dev@zope.org - http://www.zope.org/mailman/listinfo/zope-dev )