Porting an old app to a recent image

> Hi all,
>
> is there some documentation, help, tools, etc. to port a Squeak app
> written in SqueakV2.sources to a recent image?
>
> fileOut -> fileIn gives me all sorts of error messages I cannot
> understand/debug.
>
> I actually just want to port parts of the app to re-use the code. But
> it proofs really difficult for me

>
> [1  <text/plain; US-ASCII (7bit)>]
> Hi,
>
> I already tried to fileIn a minimal part (one Morph class) of the
> application I want to port and started resolving the errors in the
> debugger one by one. Still, now I am stuck with the following error:
> Metaclass(Object)>>doesNotUnderstand: #category
> (the full Stack Trace is attached)
>
> Were there some changes in the Metaclass between V2 and V3 that explain
> this error?
>
> Thanks for the hint, though Karl. I didn't know about that possibility.

> Hi,
>
> I already tried to fileIn a minimal part (one Morph class) of the
> application I want to port and started resolving the errors in the
> debugger one by one. Still, now I am stuck with the following error:
> Metaclass(Object)>>doesNotUnderstand: #category
> (the full Stack Trace is attached)
>
> Were there some changes in the Metaclass between V2 and V3 that  
> explain
> this error?
>
> Thanks for the hint, though Karl. I didn't know about that  
> possibility.
>
> Regards,
> Matthias
>
>
> Am Wed, 8 Oct 2008 18:07:55 +0200
> schrieb Karl Ramberg <[hidden email]>:
>
>> Matthias Korn wrote:
>>> Hi all,
>>>
>>> is there some documentation, help, tools, etc. to port a Squeak app
>>> written in SqueakV2.sources to a recent image?
>>>
>>> fileOut -> fileIn gives me all sorts of error messages I cannot
>>> understand/debug.
>>>
>>> I actually just want to port parts of the app to re-use the code.
>>> But it proofs really difficult for me
>> Hi,
>> in FileList you can try to look at the code with the CodeBrowser.
>> Select the file you want to load, press the code button, or select
>> browse code from the context menu.
>> This will load the code in a temporary way and you can browse it and
>> see the methods that change, and file in the parts you want.
>>
>> Karl
> <
> Metaclass_category.txt>_______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners

[..]
>   This apparently happens after some syntax error already happened.

>
> Am Fri, 10 Oct 2008 08:46:57 +0200
> schrieb stephane ducasse <[hidden email]>:
>
>  
>> this is really strange.
>> can you select one class of your app and fileout it and send it?
>>
>> stef
>>
>> On Oct 9, 2008, at 3:37 PM, Matthias Korn wrote:
>>
>>    
>>> Hi,
>>>
>>> I already tried to fileIn a minimal part (one Morph class) of the
>>> application I want to port and started resolving the errors in the
>>> debugger one by one. Still, now I am stuck with the following error:
>>> Metaclass(Object)>>doesNotUnderstand: #category
>>> (the full Stack Trace is attached)
>>>
>>> Were there some changes in the Metaclass between V2 and V3 that  
>>> explain
>>> this error?
>>>
>>> Thanks for the hint, though Karl. I didn't know about that  
>>> possibility.
>>>
>>> Regards,
>>> Matthias
>>>
>>>
>>> Am Wed, 8 Oct 2008 18:07:55 +0200
>>> schrieb Karl Ramberg <[hidden email]>:
>>>
>>>      
>>>> Matthias Korn wrote:
>>>>        
>>>>> Hi all,
>>>>>
>>>>> is there some documentation, help, tools, etc. to port a Squeak
>>>>> app written in SqueakV2.sources to a recent image?
>>>>>
>>>>> fileOut -> fileIn gives me all sorts of error messages I cannot
>>>>> understand/debug.
>>>>>
>>>>> I actually just want to port parts of the app to re-use the code.
>>>>> But it proofs really difficult for me
>>>>>          
>>>> Hi,
>>>> in FileList you can try to look at the code with the CodeBrowser.
>>>> Select the file you want to load, press the code button, or select
>>>> browse code from the context menu.
>>>> This will load the code in a temporary way and you can browse it
>>>> and see the methods that change, and file in the parts you want.
>>>>
>>>> Karl
>>>>        
>>> <
>>> Metaclass_category.txt>_______________________________________________
>>> Beginners mailing list
>>> [hidden email]
>>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>>>      
>> _______________________________________________
>> Beginners mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>>    
>
>
>  
> ------------------------------------------------------------------------
>
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>  

> The trouble seems to me that in the following part and after, variable
> "n" is used but it is a block local variables in the previous blocks.
>
> ------------------------------
> n _ root, part.
> ------------------------------
> which is in:
> ------------------
> "resizeable button/typein forms"
> #(paintUtilityButton) do: [:root |
> #(Left Middle Right) do: [:part |
> n _ root, part.
> pressed _ root, part, 'Pressed'.
> ScratchSkin at: n asSymbol put: (Utilities
> form: n from: aDirectory). root ~= #typein ifTrue: [
> ScratchSkin at: pressed asSymbol put:
> (Utilities form: pressed from: aDirectory)]]]. ------------------
>
> If you look at the Syntax Error window, there is "out of scope ->"
> indication in front of "n".  In the older image like the MIT Squeak,
> it was forgiven but not anymore in the newer images.
>
> So, rename the variable n in that part to something else and it should
> be fine.
>
> -- Yoshiki

> At Mon, 13 Oct 2008 12:32:09 +0200,
> Matthias Korn wrote:
> >
> > >   Cool, it is a fun class to work on.  I tried to file it in to
> > > 3.10.2 and did get the Syntax Error panel properly.
> >
> > How do you get the "Syntax Error panel"? Is that a special tool? I'm
> > only getting the debugger where I navigated to the message you told
> > me...
>
>   Did you get a window like attached when filing in the changeset?
>
> -- Yoshiki