Hi, guys.
I'm trying to install Knowage with docker I have followed the instructions and I created a dockerfile to save the execution commands but the installation is not done and the msg in the image is displayed I checked the URL and the page is not found, is there an idea about it !
W: There is no public key available for the following key IDs:
AA8E81B4331F7F50
W: Failed to fetch http://deb.debian.org/debian/dists/jessie-backports/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
The command '/bin/sh -c apt-get update && apt-get install -y wget coreutils unzip mysql-client && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100
Thank you for your help
