Andreas Jung wrote:

Please provide a reasonable traceback including a description how to reproduce the error (these are the basic requirements for reporting such problems if you want help).

Here is a traceback of the problem occurring whenever I select an object from the BTreeFolder2 instance and click the edit button. Exception Type AttributeError Exception Value __call__ Traceback (innermost last): * Module ZPublisher.Publish, line 101, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 39, in call_object * Module Shared.DC.Scripts.Bindings, line 306, in __call__ * Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec * Module App.special_dtml, line 175, in _exec * Module Shared.DC.Scripts.Bindings, line 320, in __render_with_namespace__ * Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec * Module App.special_dtml, line 175, in _exec * Module DocumentTemplate.DT_With, line 76, in render * Module Products.CMFCore.DynamicType, line 82, in getIcon AttributeError: __call__ Does this give anyone any ideas on what could be wrong? Thanks very much for any assistance.

Dieter Maurer wrote:

You probably should check what code you find in line 82 of ".../CMFCore/DynamicType.py".

I do not see anything in the neighborhood of line 82 which could result in an "AttributeError '__call__'"

For those who may experience a similar problem, I noticed the code in line 81 of DynamicType.py was attempting to load the portal_url tool. Upon inspection of the event.log file, I noticed that this particular tool (URLTool.py) was not loading. That fixed this issue. Thanks to all who provided help. Kevin