Net hunter upgrade

I recently got my hands on a nexus 7 1st gen., running stock lollipop. I installed nethunter on it, and proceeded to apt-get upgrade. Sometime through the process I got a onscreen message that said libc6 was an older version and needed to be upgraded. It gave a message something like please apt-get install -f to fix broken dependencies. So I tried but that didn't work😔 Next I uninstalled libc6 and tried to reinstall it, still nothing. Anybody have a solution? Or a suggestion. Thanks.

This fixed the issue for me, may help for others:
1. Uninstall nethunter chroot and completely uninstall nethunter
2. Reinstall nethunter
3. Change repo to:
deb http://old.kali.org/kali sana main non-free contrib
and remove all other repo's
4. apt-get update
5. apt-get upgrade

That worked for me too, what do you suppose would happen if the rolling repo was added to sources.list?