FWIW I'm getting exactly the same problem on a 3.8 image with the latest 
version of Seaside (I even reloaded it as suggested).

Lukas Renggli wrote:

>>I started the server as described and every link gives this error:
>>
>>MessageNotUnderstood: WARenderNotification>>raiseSignal
>>    
>>
>
>This is very strange, seems to be a problem with Seaside: in my image
>I have a method in the Seaside-Package
>
>	Exception>>raiseSignal
>		^ self signal
>
>Maybe you should try to reload the latest Seaside from the
>SqueakSource repository.
>
>  
>
>>I will try a 3.8 image but I wanted to post this problem.
>>    
>>
>
>I am developing in 3.8, if you don't want to be surprised with
>undiscovered problems you should probably try this one.
>
>  
>
>>ALSO, I want to move my smallwiki2 data to Pier. How would I go about doing
>>this? (please don't say cut and paste !)
>>    
>>
>
>See my original announcement in the SmallWiki mailing list, it
>includes migration code to keep your code and all your data alive
>while upgrading from SmallWiki 2 to Pier ...
>
>http://impara.de/pipermail/smallwiki/2005-November/002691.html
>
>  
>
>>Where does Smallwiki2 store the data anyway??
>>    
>>
>
>Objects, that all live happily in the Squeak image ;-)
>
>Pier was designed to have a prevalence like persistency: this means it
>consists of a snapshot mechanism and the logging facilities for
>command-objects. Command objects are the key thing, since this is the
>only way to modify the model. There is some experimental code (that
>already proved to work) but that is not tested in real environments
>and that is still lacking some features.
>
>Lukas
>
>--
>Lukas Renggli
>http://www.lukas-renggli.ch
>
>
>
> 
>  
>



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