Unable to install drivers from two days to demo

Hi,
I am currently running a GTX 1070 and trying to follow the two days to a demo series shown here:GitHub - dusty-nv/jetson-inference: Hello AI World guide to deploying deep-learning inference networks and deep vision primitives with TensorRT and NVIDIA Jetson.

I am at the section that talks about installing the NGC registry and drivers yet when I run the code in a terminal it says “Failed to fetch [a link to some package] 404 Not Found [IP: 91.189.91.26 80]”

Any help would be gladly appreciated!

You should identify the exact line of code that is giving that error.