[Zope] I keep getting validate error.. why?

[Allen Huang]

I keep getting this error, but the same code work on another zope server and I didn't use any key or attribute named 'validate'. What is the cause of this?

Time2007/03/20 17:38:03.726 GMT+8
User Name (User Id)admin (admin)
Request URLhttp://localhost/WEBGIS/test1
Exception TypeKeyError
Exception Value'validate'

Traceback (innermost last): 
Module ZPublisher.Publish, line 115, in publish 
Module ZPublisher.mapply, line 88, in mapply 
Module ZPublisher.Publish, line 41, in call_object 
Module OFS.DTMLMethod, line 153, in __call__
<DTMLMethod at /WEBGIS/test1>
URL: http://localhost/WEBGIS/test1/manage_main
Physical Path:/WEBGIS/test1 
KeyError: 'validate'


 
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