Op 04-03-17 om 16:59 schreef GiaThnYgeia:
http://www.deb-multimedia.org/dists testing Release' does not have a Release file The repository 'http://www.deb-multimedia.org/dists testing Release' does not have a Release file.
What does your deb-multimedia entry in sources.list look like exactly? These two lines suggest apt is looking for the Release file of a component called 'Release' in the suite 'testing'
In the instructions it says once you open the directory download the multimedia keyring
Alternatively - if you really can't get hold of the keys - put [ trusted=yes ] between 'deb' and the url, e.g.:
deb [ trusted=yes ] http://www.deb-multimedia.org testing main non-free Regards, Frank