Recently installed ubuntu 12.4 on my laptop (which ive been having issues with to begin with. The most recentprogram installedwas the "gnome-tweak-tool" after i rebooted i recieved an error on the top right:
"An error occurred, please run Package Manager from the right-click menu or apt-get in a terminal to see what is wrong. The error message was: ' Error: Opening the cache (E:Read error - read (5:Input/output Input/output error),E:The package lists or status file could not be parsed or opened.)'. This usually means that your installed packages have unmetdependencies"
Being newer to ubuntu i dont know the terminal commands to find the info. The only things i can get to open is the terminal and the main settings page. Nothing inside the settings page will open though.