[TYPO3-english] TYPO3 Fatal Error: Extension key "lang" was NOT loaded!

[Jigal van Hemert]

Tomiţă MILITARU wrote:
> TYPO3 Fatal Error: Extension key "lang" was NOT loaded!
> (t3lib_extMgm::extPath)

It might be worth a try to delete the typo3conf/temp_CACHED_* files.

If that doesn't help, you can try to start the install tool and remove 
the files from typo3temp/ (the install tool will only let you delete the 
files which are safe to remove) and clear the cache_ tables in the database.

Regards,

-- 
Jigal van Hemert.