Hi, 

that will not work. 
and it will never work like that sadly. 

You are trying to use gofer as apt-get, and that���s not how it works��� you cannot just update packages to have a working image with newer versions. 
The way pharo should work is: 

- there is the update process (world menu, system, update system) who will try to update the pharo system. That means not external project (like for instance seaside) will be updated. 
Please notice that this process is currently BROKEN, so you cannot try it now. 
We will restore it, but so far no time to work on it (also, is not top priority because is not of frequent use: most people needing to update just download an image and start over again, which is super easy to automatise using zeroconf and command line scripts). 

- you can update your installed projects by downloading newer configuration versions and applying them. But again, more frequent is to just doing it in a newer image. 

the reason why this is not really used is because pharo (smalltalk) extensibility is powerful but complicated to manage, due the amount of overriding methods, etc.

cheers, 
Esteban


On 25 May 2015, at 15:54, Leo Paniceres <lpaniceres@gmail.com> wrote:

 
���Hi Stephan
     I'm trying to have my image updated to the last version of each package that I'm using.
I'm trying first:
Gofer upgrade (to update Gofer)
and then to update:
Gofer gofer update (also have an error)���


���Any advice to have all my third party packages updated?���

���Thanks���




------------------------------

Message: 4
Date: Mon, 25 May 2015 08:53:26 +0200
From: stepharo <stepharo@free.fr>
To: Pharo Development List <pharo-dev@lists.pharo.org>
Subject: Re: [Pharo-dev] Gofer upgrade error
Message-ID: <5562C6E6.901@free.fr>
Content-Type: text/plain; charset=windows-1252; format=flowed

Hello leo

Thanks for your feedback.  We will fix this

unregisterPackageInfo: aWorkingCopy
     PackageOrganizer default
         unregisterPackage: aWorkingCopy packageInfo
     https://pharo.fogbugz.com/default.asp?15602


I do not think that anybody ever used upgrade. :)
What do you want to do exactly?
have a look at the deep into pharo book, there is a chapter on Gofer.





Le 25/5/15 08:02, Leo a ?crit :
> I have a fresh image of Pharo 4 -just downloaded-.
>
> When I try
>       Gofer upgrade
>
> I receive a MessageNotUnderstood: receiver of default is nil.
>
> What is happening?
>
> thanks
>
>