In “software” after choosing ANY program,
i get a message to “enable 3rd party software source?” I click “enable and install” and it returns
“Installation failed. If the problem persists, contact your software provider.
Detailed errors from the package manager follow:
installing not available”
What 3rd party software source? Have you checked the “Software & Updates” app?
I’m talking about “software”, not “software & updates”.
This is the message i see when i try to install qBittorrent or Telegram or any XMPP client.
It’s been a month, and it’s really annoying, when will I be able to install 3rd party software???
Solved internally. But for future reference, the following Terminal command will fix software repo problems:
sudo echo -n "deb https://repo.puri.sm/pureos/ green main" > /etc/apt/sources.list
After this, run this in Terminal to update and upgrade the system:
sudo apt update && sudo apt upgrade
Or just download the latest version, run the live boot, and from there the Calamares installer.