[TYPO3] Back end goes blank

[Bing Du]

> Bing Du wrote:
>> Hi,
>>
>> Typo3 4.0.6
>>
>> The back end went blank again today.  Again, manually deleting the
>> temp_CACHED_* files in typo3conf/ brought it back.  I checked the
>> typo3conf/localconf.php file and noticed the last change was made on
>> 5/23/2007.  I've seen the problem twice in the past couple of years. Can
>> anybody shed some light on what might be going on?  How and why
>> temp_CACHED_* files prevent back end from showing up?
>>
>> Thanks in advance,
>>
>> Bing
>>
> Hi,
>
> We have a similar problem a two moths ago in typo 4.1 , BE went blank
> instead to show a error message when we  have a error in the code. But
> we have
>
> We resolved this setting $TYPO3_CONF_VARS['SYS']['displayErrors'] = '1'
> in localconf.php.
>
> Regards.
>
> Iván Gómez Rodríguez
> Ingeniero en Informática
> mailto:igomez at igalia.com
> Telf:  +34 986 10 76 10
> Fax:   +34 981 91 39 49
> Igalia http://www.igalia.com
>
>

That's a good hint.  Thanks.  Besides showing the error right up front on
the page, were you also able to find it in any logs, say Apache error log
file?  My concern with showing error message on the page is it could
reveal system config or file structure information.  This time, since I
already deleted temp_CACHED_* files and the back end came back up, I was
not able to catch the error on the page.  I'll try it next time.

Bing