[TYPO3-english] Re: The package "frontend" depends on "cms" which is not present in the system.

[Viktor Livakivskyi]

Hi,

> After upgrading to 7.5.0 I had to downgrade back to 7.3.1. Now I get error:
> #1382276561: The package "frontend" depends on "cms" which is not 
> present in the system.

Can you check if there is a "cms" extension in typo3/sysext/ folder?
If not, then you did downgrade wrong and need to really copy complete source of 7.3.1.