[TYPO3-core] PackageManager fatal error in the core after uninstalling extension

[Dmitry Dulepov]

Hi!

Xavier Perseguers wrote:
> - Updated master branch
> - Deleted ./typo3temp/Cache (to be sure)
> - Deleted ./Packages (to be sure)
> - Went to Backend>  EM

Yes to all of the above.

> - Removed Help>  About (about)

No here :) You need to do it with a third-party extension, which does not 
have special classes for new PackageManager. Here is one person describes 
how he reproduced it: http://forge.typo3.org/issues/53311#note-2

> - Clicked around, everything's fine
> - Loaded again Help>  About
>
> tried again with another extension, everything runs "smoothly" in my dev
> install, both BE and FE and both logged-in/not logged-in.

Okay, than I must assume my installation went all wrong. May be, I update 
too often...

-- 
Dmitry Dulepov

Today is a good day to have a good day.