Hi, i want to re-install simon Listens in my Kubuntu 12.04. why re-install it?, i installed in my machine and it worked, but then i installed another programs and run the command "apt-get upgrade", and then when I restart my computer i noticed that simon doesn't started, so i searched in my installed applications and it wasn't there, then i go to my package manager and I see that simon wasn´t install, so i tried to install again and show me and error that says "You need Kdelibs5 but can´t install it".

I tried to install the kdelibs5 again but the package manager don´t let me.

Can someone help me?

p.s. Sorry for my bad english

Can you please provide the precise conflict message which you are seeing from your package manager?
It should inform you why exactly it cannot install kdelibs5.

As a first step though, please make sure all needed repositories are fully refreshed.