I have inkscape 0.48 installed and I'm trying to install inkscape 0.91 on the site they provide me with these commands
sudo add-apt-repository ppa:inkscape.dev/stable
sudo apt-get update
sudo apt-get install inkscape
When I enter the 1st line of commands it comes up with this
You are about to add the following PPA to your system:
The Inkscape Stable PPA is intended to provide the current supported release of Inkscape.
More info: https://launchpad.net/~inkscape.dev/+archive/ubuntu/stable
Press [ENTER] to continue or ctrl-c to cancel adding it
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.Pph6xzLEzv --trustdb-name /etc/apt//trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-jessie-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-jessie-security-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-jessie-stable.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-squeeze-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-squeeze-stable.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-wheezy-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-wheezy-stable.gpg --keyserver hkp://keyserver.ubuntu.com:80/ --recv 22C4850146603F3DB0ED00479DA4BD18B9A06DE3
gpg: requesting key B9A06DE3 from hkp server keyserver.ubuntu.com
gpg: key B9A06DE3: "Launchpad PPA for Inkscape Developers" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
What do I need to change so that the pc accepts the ppa?
apt-get update
as an edit. The full output. And tell us what OS you are using.