Ubuntu – upgrading from 15.10 to 16.04 apt not installed


When trying to upgrade using the terminal, my upgrade stops. This is the line showing in the terminal:

The required dependency 'apt(>= ubuntu2)' is not installed.

my problem is that I don't know the command to install this dependency. Using other commands, it says apt is up to date. Solutions?

Best Answer

Had the same problem, solved by forcing the update of apt and cleaning the current installation as Andrew suggested:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get -f install   # (not "install -f"!)
sudo apt-get -y install apt
sudo do-release-upgrade
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