[TYPO3-english] Undefined variable: _SERVER

[Christian Tauscher]

Hello.

On my DEV-Machine a did an umgrade from V6.2.10 to V6.2.11
BE is OK, but teh FE only says:

<br />
<b>Notice</b>:  Undefined variable: _SERVER in 
<b>/var/www/htdocs/typo3_src-6.2.11/typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php</b> 
on line <b>332</b><br />
Unable to determine path to entry script.


Do you know what this is causes by, how to solve?
For the first I switch back to 6.2.10


Christian.