Mohamed Lrhazi wrote at 2004-6-4 15:04 -0400:

Sometimes, after submitting a form for processing, by my own Product methods, I get:

Site Error An error was encountered while publishing this resource.

Error Type: ValueError Error Value: Cache values may only be in one cache.

What causes such an error?

Usually a persistency bug... e.g. a persistent object used as a class variable rather than an instance variable or a persistent object maintained in some "global" name space and used in different objects... -- Dieter