The last eclipse-cdt update has broken my c++ perspective

[luca paganotti]

Hi all, I'm searching help about the last eclipse-cdt update carried out on
my fedora 20 box.
It seems I'm not able anymore to load my existing c++ projects, nor create
new ones. I've tried to uninstall and then reinstall all my eclipse
environment few times. I've also tried to rollback to the previous yum
transaction. The c perspective is absent. I've tried also to issue eclipse
with the -clean switch. But no hope for the time being. The last cdt update
is about eclipse-cdt 8.3.0-2 x86_64 and was performed on 2015-03-22.

Is there someone kind to help or drive me to the right source of info?

Thank you for any answer and forgive my italianish ...
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