Installing Runtime on Linux Mint 18


I recently, as in for the past half hour or so, tried to install the runtime on Linux Mint. I tried both the Ubuntu and Debian way, but I never get past directing my software sources to it. In both cases, I get this error:

The repository ' xenial Release' does not have a Release file.Data from such a repository can't be authenticated and is therefore potentially dangerous to use.See apt-secure(8) manpage for repository creation and user configuration details.Failed to fetch  404  Not FoundSome index files failed to download. They have been ignored, or old ones used instead.

Is there any fix for this?

I think I fixed this by enabling repository signing. Could you test it now?

You may first have to add the keys by running:

sudo apt-key adv --keyserver --recv-keys 87828F5B 80AD5260 49F9BF71