Hello everybody,
I have a problem with installing the insight on my ubuntu 17.10.
So, first of all I added these two repostries to the /etc/apt/sources.list
deb http://ppa.launchpad.net/sevenmachines/dev/ubuntu natty main
deb-src http://ppa.launchpad.net/sevenmachines/dev/ubuntu natty main
after that, I updated the system using apt-get update
and then I tried to install it apt-get install insight
I get this error while the update
W: GPG error: http://ppa.launchpad.net/sevenmachines/dev/ubuntu natty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 35DA01C261E46227
E: The repository 'http://ppa.launchpad.net/sevenmachines/dev/ubuntu natty Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
and this one trying to install the insight debugger
E: Package 'insight' has no installation candidate
I look for a solution almost anywhere in the internet but I didn’t find anything. I hope you can help me, thank you.