[TYPO3-core] TPYO3 6.2 Extension key "feedit" is NOT loaded

[Andreas]

Hi,

I install a fresh 6.2alpha2 on a clean Linux System. The installation are ok, but if I want to use the extension Manager in the BE I get following error:

TYPO3 Fatal Error: Extension key "feedit" is NOT loaded!

I have no idea where the problem is. The alpha1 did not make this problem.

Any Instruction how can I solve this problem?

Andreas