I was trying to sudo apt install npm but when I tried to, this is what happened:
E: Unable to fetch some archives, try running apt-get update or apt-get --fix-missing.
As well as multiple lines that say something like:
Err:5 http://ca.archive.ubuntu.com/ubuntu zesty/universe amd64 nodejs amd64 4.7.2~dfsg-1ubuntu3
404 Not Found [IP: 91.189.88.149 80]
When I do sudo apt-get update, it does not work and says that multiple packages cannot be found or that it can not be installed safely.
I have no idea why it does this or how to fix it. I've been digging for hours but nothing seems to work. Any help?