It's a shame so many of the modules have broken with this new release.
Only a matter of time. Most CMS's are the same when a new major version is released. Although some of the others have high enough module activity that the maintainers bring their modules up to speed prior to release.
And there's only one way to generate more activity. ;-)
Dandbalbo, try posting your problem to the installation thread. Notices aren't really errors. You could turn E_NOTICE off and I suspect you won't have a problem.