Go to the Find tab in the ZMI, select "All types", containing "<foo>" Error type: TypeError Error value: expected a character buffer object Traceback (innermost last): Module ZPublisher.Publish, line 49, in publish Module ZPublisher.mapply, line 32, in mapply Module ZPublisher.Publish, line 38, in call_object Module Shared.DC.Scripts.Bindings, line 250, in __call__ Module Shared.DC.Scripts.Bindings, line 270, in _bindAndExec Module App.special_dtml, line 110, in _exec Module DocumentTemplate.DT_With, line 58, in render Module DocumentTemplate.DT_Util, line 175, in eval __traceback_info__: obj_metatypes Module <string>, line 0, in ? Module OFS.FindSupport, line 51, in ZopeFind TypeError: expected a character buffer object