Unmet dependencies error when installing python3-dev

I keep getting this error whenever I try to install python3-dev. I tried many solution but it didn’t worked.
I even tried to format the SD card and re-flash the image several times but the same error is keep showing.

I am using Ubuntu 18.04
Jetpack 4.6
SD card image: https://developer.nvidia.com/jetson-nano-sd-card-image


We tested the installation on TX2 with JetPack 4.6.3 and it can work correctly.
Could you set up your device with JetPack 4.6.3 or 4.6.4 and try it again?


I changed the default python version from 2.7 to 3.6 and it worked

Good to know it works.
Thanks for the feedback.