[TYPO3-english] What does these warnings mean?

[Peter Russ]

--- Original Nachricht ---
Absender:   Ronald Wiplinger (Lists)
Datum:       01.12.2008 07:43:
> Sometimes I see warnings like:
> 
> 
> *Warning*: mysql_fetch_assoc(): supplied argument is not a valid MySQL
> result resource in
> */home/elmit1/public_html/typo3_src-4.2.1/t3lib/class.t3lib_db.php* on
> line *808*
> 
> *Warning*: Cannot modify header information - headers already sent by
> (output started at
> /home/elmit1/public_html/typo3_src-4.2.1/t3lib/class.t3lib_db.php:808)
> in */home/elmit1/public_html/typo3_src-4.2.1/typo3/template.php* on line
> *632  
> 
> 
> What do they mean? Is it a programming error that causes that or a
> network error?
> 
> bye
> 
> Ronald
> *

If it is not a fresh install in might be:
1st error: did you upgrade your database
2nd is caused because for 1st, just and followup

If it is a fresh install check database/TCA with the install tool and 
see what is wrong

Peter.

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