When I'am trying to install packages I am getting error:
The value 'jessie' is invalid for APT::Default-Release as such a release is not available in the sources
cat /etc/debian_version 9.8 cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)" NAME="Raspbian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=raspbian ID_LIKE=debian cat /etc/apt/sources.list deb http://raspbian.raspberrypi.org/raspbian stretch main contrib non-free rpi
I need tcl 8.5 or newer in order to run the Redis test. Does anyone know how do I resolve this error?