apt‐get install python‐opencv
sudo. They drop the command without a second thought, like it should have no reason to fail. The problem is that my
apt-get does not find the packages.
$ > sudo apt-get install python‐opencv Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package python‐opencv
I guess I'm missing one or more lines in
/etc/apt/sources.list but could not find which ones by STFW. Here's the contents of the file right now, which came default with the install of raspbian:
> cat /etc/apt/sources.list deb http://mirrordirector.raspbian.org/raspbian/ stretch main contrib non-free rpi # Uncomment line below then 'apt-get update' to enable 'apt-get source' # deb-src http://archive.raspbian.org/raspbian/ stretch main contrib non-free rpi
I've tried to uncomment the
deb-src line and add the following line I found somewhere, to no avail:
deb http://de.archive.ubuntu.com/ubuntu precise main restricted universe
sudo apt-get update works for some time, ignores (lines starting with
Ign?) many packages, gets a handful of packages, then gives the following error, which I'm not sure is critical:
W: The repository 'http://de.archive.ubuntu.com/ubuntu precise Release' does not have a Release file. N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use. N: See apt-secure(8) manpage for repository creation and user configuration details. E: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/precise/main/binary-all/Packages.gz Redirection loop encountered E: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/precise/main/binary-armhf/Packages 404 Not Found [IP: 18.104.22.168 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
I have an 8GB not full SDCard that I formatted by following the instructions under
Download NOOBS files then drag and drop here.
What am I missing?