When I apt-get intall mixxx, I get following message:
Package mixxx is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'mixxx' has no installation candidate
I tried before through the software apps, and then I can’t download the program itself either (some part of it, but useless without the program itself).
Why is this?