Nexus 6 Shamu - Updater process ended with Error: 7

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1

So, when i try and do a adb sideload e-0.10-n-2020081367789-dev-shamu.zip

it aborts with

Updater process ended with Error: 7

ADD: I can successfully install lineageOS 16 and 17 on this phone.

Regain your privacy! Adopt /e/ the unGoogled mobile OS and online servicesphone

2

I am using Nexus 6P, same error 7. No body reply ?

3

It seems there is a problem with TWRP.

I downgraded from 3.4.0.0 to 3.2.3.0

And it installed fine.

4

Thank you,
I had the same Error 7 while trying to install on a Nexus 5 Hammerhead with TWRP 3.4.0.0,
I chose recovery TWRP 3.2.3.0, and was able to install with no issue