[TYPO3] BE not working after upgrade to 4.2

[Benjamin Mack]

Hey Piotr,

first thing looks like you haven't cleared the browser cache and the 
browser still takes the old CSS -- is this possible?

Also, make sure to update your extensions where possible.

lates,
benni.
-SDG-

Piotr Burda wrote:
> Piotr Burda pisze:
>> Hi
>>
>> After upgrading (from 4.1.2) to 4.2.1, my backend looks strange when 
>> using List, screen:
>> http://www.narty.pl/em/screen_1.jpg
>>
>> Second problem is more serious, when trying to edit content element 
>> (pencil icon) i have error HTTP 500 - screen is here:
>>
>> http://www.narty.pl/em/screen_2.jpg
>>
> 
> second problem is resolved.
> 
> after enabling PHP error in Install, i have this error message (when 
> trying to edit content element):
> 
> Fatal error: Cannot re-assign $this in 
> /home/mysite/typo3conf/ext/cal/hooks/class.tx_cal_tceforms_getmainfields.php 
> on line 35
> 
> found the responsible: old cal extension, after upgrade to new "cal" 
> version BE content editing works fine.
> 
> Need help with first one
> 
> Regards
> Piotr