/Shell/Bash/Add-apt-repository universe invalid

Add-apt-repository universe invalid

I apparently solved it by doing this:

RUN sed -i "/^# deb.*multiverse/ s/^# //" /etc/apt/sources.list
RUN sed -i "/^# deb.*universe/ s/^# //" /etc/apt/sources.list
Instead of this:

RUN add-apt-repository multiverse
RUN add-apt-repository universe

Source: askubuntu.com

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