Dear Kali community,

I'm using Kali Nethunter 3.15 on my Nexus 6 (Android 7.0).
When trying to add a metapackage (kali-linux-web), I get a lot of 404 errors.
E.g. W: Failed to fetch http://security.kali.org/dists/sana/...armhf/Packages 404 Not Found

My sources.list reads:
deb http://http.kali.org/kali sana main non-free contrib
deb-src http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali sana/updates main non-free contrib
deb-src http://security.kali.org/kali sana/updates main non-free contrib

and I even added:
deb http://http.kali.org/kali kali-rolling main non-free contrib
deb http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main non-free contrib

What am I doing wrong?

Many thanks and best regards
Muhackl