Hello folks !
Thanks for reading me.
When i install any (or most of any) package through default (preinstalled) repositories via Synaptic it returns an error message (not blocking however) something like :
an under this message comes the list of the packages I ask for installation.
I checked if packages featuring "keyring" were installed, and most of them seem to.
But not every repository is activated on sources.list, only the ones activated by default at first by Mint installer.
Can someone please help me, maybe suggest the repositories to put in sources.list and the packagesto install afterwards to get rid of this authentification problem.
Thank you in advance.