I don't see any reason to reinstall just yet.
I provided you with a solution to NO_PUBKEY and to the "could not get lock", neither of which is a *Critical* Error.
Purging packages is not really...
Type: Posts; User: patryk77; Keyword(s):
I don't see any reason to reinstall just yet.
I provided you with a solution to NO_PUBKEY and to the "could not get lock", neither of which is a *Critical* Error.
Purging packages is not really...
In Terminal, try:
sudo apt-key update
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com E4010F076C2225A4
If that doesn't work, run:
grep -i launchpad /etc/apt/sources.list
And...