> On 01 May 2015, at 18:14, Johannes Rasche Kreuzberg 
> <[email protected]> wrote:
> 
> Max,
> 
> well the ConfigurationOfFuel in Pharo 3 does not know Fuel 1.9.4
> 
> and in Pharo 4 there is no ConfigurationOfFuel
> neither in the image (ConfigBrowser)
> nor on http://smalltalkhub.mc/Pharo/MetaRepoForPharo40/main 
> <http://smalltalkhub.mc/Pharo/MetaRepoForPharo40/main>

Fuel is part of Pharo, so you won’t find a configuration in the meta 
repository. That’s why I posted the Gofer code to get the latest configuration 
with version 1.9.4:

Gofer it
   url: 'http://smalltalkhub.com/mc/Pharo/Fuel/main';
   package: 'ConfigurationOfFuel';
   load.
((Smalltalk at: #ConfigurationOfFuel) project version: ‘1.9.4') 
   load.


(See 
http://rmod.inria.fr/web/software/Fuel/Version1.9/Documentation/Installation)

We have builds that make sure that version is loadable in Pharo 3 and 4, so it 
should work. Otherwise, please hit me up again.

Cheers,
Max

> 
> what's up? do I oversee somthing relevant ?
> 
> Johannes
> 
> Am 30.04.15 um 15:04 schrieb Max Leske:
>> 
>>> On 30 Apr 2015, at 14:40, Mariano Martinez Peck <[email protected]
>>> <mailto:[email protected]>> wrote:
>>> 
>>> Johannes, 
>>> 
>>> The simples approach is that you materialize your object in 3.0, then
>>> load the same version as fuel from pharo 4.0 and then serialize again
>>> in 3.0. 
>> 
>> That should work without problems now. Just be aware that some things
>> have changed dramatically (e.g. MethodContext no longer exists, instead
>> there is now Context). For most of the objects however, migration should
>> work fine when you use the Pharo 4 version (1.9.4) in Pharo 3.
>> 
>>> After that, you can materialize in 4.0.
>>> The other alternative is that in 4.0 you load older version of Fuel
>>> (the one in 3.0), then import, the expert, then load new fuel again. 
>>> 
>>> I have been doing this since Pharo 1.4 until 4.0 since my client's app
>>> also uses Fuel. And the process was always quite simple and only once
>>> per release.
>>> 
>>> Migration is something we miss in Fuel..and even if we have promised
>>> to keep format unchanged, sometimes the evolution of Pharo itself (not
>>> the internal Fuel format representation) makes the format to be broken
>>> from one version to the other. So until we have a better automagic
>>> migration tool, the above trick should work. 
>>> 
>>> Also...see this
>>> link: 
>>> http://rmod.inria.fr/web/software/Fuel/Version1.9/Documentation/FormatMigration
>>> 
>>> 
>>> Btw...here is the scrip I used to migrate from 1.8 to 1.9... this is
>>> just an EXAMPLE of how you can do it..but do not copy it becuase it
>>> uses old version of the code repositories, etc...
>>> 
>>> 
>>> 
>>> | oldVersion newVersion fileNames objectsByFileName materializerClass |
>>> 
>>> oldVersion := '1.8'.
>>> newVersion := '1.9'.
>>> fileNames := #(
>>> 
>>> '/Users/mariano/XXX/aaaaDB.fdb'
>>> '/Users/mariano/XXX/bbbbDB.fdb'
>>> '/Users/mariano/XXX/ccccDB.fdb'
>>> '/Users/mariano/XXX/ddddDB.fdb'
>>> '/Users/mariano/XXX/eeeeDB.fdb'
>>> '/Users/mariano/XXX/ffffDB.fdb'
>>> ).
>>> objectsByFileName := Dictionary new.
>>> 
>>> materializerClass := Smalltalk at: #FLMaterializer.
>>> 
>>> fileNames do: [ :fileName | 
>>> objectsByFileName 
>>> at: fileName 
>>> put: (materializerClass materializeFromFileNamed: fileName).
>>> FileDirectory default copyFileNamed: fileName toFileNamed: fileName,
>>> '-', oldVersion asString ].
>>> 
>>> Gofer it 
>>> squeaksource3: 'Fuel';
>>> package: 'ConfigurationOfFuel';
>>> load. 
>> 
>> This is the old repository. You should use 
>> 
>> Gofer it
>>    url: 'http://smalltalkhub.com/mc/Pharo/Fuel/main';
>>    package: 'ConfigurationOfFuel';
>>    load.
>> ((Smalltalk at: #ConfigurationOfFuel) project version: ‘1.9.4') 
>>    load.
>> 
>> 
>> (See
>> http://rmod.inria.fr/web/software/Fuel/Version1.9/Documentation/Installation)
>> 
>> 
>>> (ConfigurationOfFuel project version: newVersion) load.
>>> 
>>> objectsByFileName keysAndValuesDo: [ :fileName :objects |
>>> FLSerializer 
>>> serialize: objects  
>>> toFileNamed: fileName.
>>> FileDirectory default copyFileNamed: fileName toFileNamed: fileName,
>>> '-', newVersion asString
>>>  ].
>>> 
>>> 
>>> 
>>> On Thu, Apr 30, 2015 at 9:19 AM, Norbert Hartl <[email protected]
>>> <mailto:[email protected]>> wrote:
>>> 
>>> 
>>>>    Am 30.04.2015 um 14:08 schrieb Johannes Rasche Kreuzberg
>>>>    <[email protected] <mailto:[email protected]>>:
>>>> 
>>>>    Hi folks,
>>>> 
>>>>    I'm just migrating to Pharo 4.0
>>>> 
>>>>    On materialization of objects serialized under Pharo 3
>>>>    an error was raised: different versions numbers ( 194 required ).
>>>> 
>>>>    Where does version 194 come from ?
>>>>    Monticello from Pharo 3 offers 193
>>>> 
>>>>    Johannes
>>>> 
>>>    You need to add the repository of Fuel, load the ConfigurationOf
>>>    from there and you can upgrade to 1.9.4
>>> 
>>>    The repository to add is
>>> 
>>>    http://smalltalkhub.com/mc/Pharo/Fuel/main
>>> 
>>>    Norbert
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Mariano
>>> http://marianopeck.wordpress.com <http://marianopeck.wordpress.com/>
>> 
> 
> 
> -- 
> 
> /Johannes Rasche
> Hagelberger Str. 56
> 10965 Berlin
> fon +49 30 851 14 92
> mobil +49 1577 175 04 75
> mail [email protected]
> www http://Rasche-Kreuzberg.de/
> 

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