Install fails on Nexus 6

Hi,

I am having some trouble with the nethunter install. I am using the Nethunter Linux Root Toolkit found here https://github.com/offensive-security/nethunter-LRT
here is what happens.

First I unlocked flashing on my phone.
Then I run the Stock flash with a stock image from google.
Then I setup the stock image and enable adb.
Then I run the twrpFlash.sh script.

In the installer i select everything except supersu.

It all runs fine until i reboot, then i get a google boot screen, it blinks and it goes to TWRP.

I think the error is here in the installer output

Code:

---

******************
Boot image patcher
******************
- Finding boot image
--- Boot image: /dev/block/mmcblk0p37
- Extracting ramdisk
- Decompressing ramdisk (gzip)
- Checking patch status
- Creating backup
- Checking signature
--- Unsigned
- Patching sepolicy
- Adding daemon launcher
- Adding init script
- Creating mount point
- Patching init.*.rc, fstabs, dm-verity
- Creating ramdisk backup
--- Failure, aborting

---

You need supersu.

I don?t know if it is right if I post here but I don?t want to create a new post.
I got a nexus 6 (XT1100) and it is running on android 7.1.1 do I have to downgrade to 6.0.1 or can I use the nexus 6 nougat NetHunter file from offensive security?
I tried the search function but I wasn?t able to find a proper forum fitting my problem.
And if I have to downgrade am I?m going to use fastboot?
Thanks

I have the same problem with my Nexus 7 (2013 Wifi Flo). TWRP is working and all is perfect, but the nethunter is not possible to install. Everytime there is a error that there is something wrong with the partition. I?m tested an older TWRP and the newest version, but it?s not possible to install nethunter on my Nexus 7 (16GB) Wifi device fromn asus.