Cache Error ubuntu 16.04

[Carsomyr]

It is sort of faded because it kept closing when I would take a screen shot. This is what it says:
"An error occured, please run Package Manager from the right-click menu or apt-get in a terminal to see what is wrong. the error message was: ' Unknown Error: '<class 'KeyError'>' (The cache has no package named 'pcsx2-unstable'")'. This usually means that your installed packages have unmet dependencies."

I have done apt-get update/upgrade several times since installation, and I can use PCSX2 no problem. Someone explain this to this poor windows guy?

[AeroAceX01]

Did you use gregory's PPA to install PCSX2 or did you install it from Ubuntu's repositories?

[gregory]

I think the packet is pcsx2-unstable:i386. There are command to check the cache consistency.
=> man apt-cache
I think it is apt-cache check but I'm not sure.

[Carsomyr]

@gregory I will check into that when I get back on ubuntu, doing some homework on windows atm, but I thought it would also be pertinent to mention that every time that message pops up I show and then run updates and pcsx2 builds the latest revision. I guess i was curious if that behavior was intended?

[Carsomyr]

There was no apt-cache check, just apt-get check. I ran an apt-get install --reinstall but it looks like all it did was update the packages...

[gregory]

It is strange, try that

Code:

apt-get clean
apt-get check
apt-get update