[TYPO3-english] SOLVED Extensions go blank in BE after upgrade

[yanagik317 at netscape.net]

Bah, two strikes on me.

PHP was configured to log to a file but the destination directory 
didn't exist.  Once created, it became apparent what the problem was.  
I had a soft link named /docroot/typo3conf pointing to 
/not/a/docroot/typo3conf, and the extensions were basically trying to 
include /not/a/docroot/typo3/init.php, which didn't exist.  Once fixed, 
all the extensions became lively in BE.

Testing upgrading from 4.2.12 to 4.4.12.  I'm encouraged by otherwise 
good results so far despite skipping 4.3, if anyone finds this of 
interest.

Thanks to those that replied.

--Koji