It's probably the problem I had of a strange character inserted before.
Try to open the file with some editor (BBedit, Jedit) and to see if 
there is a strange character).
If so, then it won't compile. That's ok: it depends on other things. 
You can refer to the previous mails in the thread.

Best

-a-

On 9 Aug 2005, at 07:27, 정 달영 wrote:

> I copied the demoTest file and try to compile it.
> And I got a 'undefined control sequence.' message as follows. I 
> confirmed the existence of the file "s-pre-08.tex" in the  
> ../context/base/ folder.
> Any help, please.
>
> ********************************
> system          : contest.top loaded
> (./contest.top
> specials        : loading definition file tpd
> (/usr/local/teTeX/share/texmf.local/tex/context/base/spec-tpd.tex
> specials        : loading definition file fdf
> (/usr/local/teTeX/share/texmf.local/tex/context/base/spec-fdf.tex)
> specials        : fdf loaded
> )
> specials        : fdf,tpd loaded
> ) (./contest.tuo) (./contest.tuo) (./contest.tuo) (./contest.tuo)
> (./contest.tuo) (./contest.tuo) (./contest.tuo) (./contest.tuo) 
> (./contest.tuo)
> (./contest.tuo) (./contest.tuo) (./contest.tuo) (./contest.tuo)
> systems         : begin file contest at line 5
> ! Undefined control sequence.
> l.7 \TitlePage
>
> ? x
> No pages of output.
> ************************
>
> Thanks,
>
> Dalyoung
>
>
>
>  , 2005. 08. 06, 오전 7:07, andrea valle 작성:
>
>> I obtain the same results from this file named demoTest put in the 
>> demoTest folder on my desktop, starting form s-pre-p.
>>
>>
>> % demoTest
>> \usemodule[pre-08]
>> %D The demo text.
>>
>> \starttext
>>
>> \TitlePage
>>   {Fancy Styles:\\layers}
>>
>> \StartIdea
>>   \StartSample
>>     \input tufte
>>   \StopSample
>>   \StartText
>>     \input reich
>>   \StopText
>> \StopIdea
>>
>> \StartIdea
>>   \StartSample
>>     \input knuth
>>   \StopSample
>>   \StartText
>>     \input reich
>>   \StopText
>> \StopIdea
>>
>> \stoptext
>>
>> % EOF
>>
>> I'm looking at the console to see what's happening but don't know 
>> what to I should check
>> My s-pre files are in /sw/share/texmf/tex/context/base
>>
>> I was looking forward to make my presentations... :-(
>>
>> Thanks!
>>
>> -a-
>>
>>
>> On 4 Aug 2005, at 22:32, Matthias Weber wrote:
>>
>>
>>> I have the same setup (TeX installation via Gerben's iinstaller).
>>>
>>> You haven't by any chance called the file you are TeXing also 
>>> s-pre-22.tex?
>>> This would explain it ---
>>>
>>> Matthias
>>>
>>> On Aug 3, 2005, at 3:36 PM, andrea valle wrote:
>>>
>>>
>>>> Hi,
>>>> very interesting. But I'm having troubles. Probably because I'm 
>>>> pretty new to this kind of stuff (I'm using ConTeXt very 
>>>> basically).
>>>>
>>>> I made a demoTest.tex filestarting from s-pre-22.tex.
>>>> I copied the demo part of s-pre-22.
>>>>
>>>> Here it is:
>>>>
>>>> %D \module
>>>> %D   [      file=s-pre-22,
>>>>
>>>> \usemodule[s-pre-22]
>>>> %D The demo text.
>>>>
>>>> \starttext
>>>> etc.
>>>>
>>>>
>>>> Now,  I compiled but I obtained:
>>>>
>>>> ! Undefined control sequence.
>>>> l.9 \TitlePage
>>>>               {Indeed}{The Title Page}
>>>>
>>>>
>>>> What am I missing?
>>>>
>>>> Thanks a lot
>>>>
>>>> -a-
>>>>
>>>>
>>>>
>>>>
>>>> On 3 Aug 2005, at 15:31, piskala upendran wrote:
>>>>
>>>>
>>>>> Hi, Jessica
>>>>>
>>>>> The context/base has so many modules s-pre-**.tex. At
>>>>> the end of the module you have the examples are given.
>>>>> copy the examples in seperate file and add the module
>>>>> no name from with the example was taken.
>>>>>
>>>>> \usemodule[pre-**]
>>>>>  and compile the files. iam sure you can select your
>>>>> flavour. you can also tweat the colors to suit your
>>>>> requirement.
>>>>>
>>>>> thanks
>>>>> upendran
>>>>>
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>>>>>
>>>>>
>>>> Andrea Valle
>>>> Laboratorio multimediale "G. Quazza"
>>>> Facoltà di Scienze della Formazione
>>>> Università degli Studi di Torino
>>>> andrea.valle@unito.it
>>>>
>>>> _______________________________________________
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>>>
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>>>
>> Andrea Valle
>> Laboratorio multimediale "G. Quazza"
>> Facoltà di Scienze della Formazione
>> Università degli Studi di Torino
>> andrea.valle@unito.it
>>
>> _______________________________________________
>> ntg-context mailing list
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>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
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>
Andrea Valle
Laboratorio multimediale "G. Quazza"
Facoltà di Scienze della Formazione
Università degli Studi di Torino
andrea.valle@unito.it