Nodejs Ubuntu installer still installs v4

[ShipmasterKyle]

I followed the instructions featured on the readme to install v17.x on my Ubuntu Xenial system but after installing when I run
nodejs --version
the output is
v.4.2.6
This is the same version I had before. I tried unistalling it and then following the instructions however it doesn't seem to have any impact on the version installed.

[givetimetolife]

I think I know the problem, NodeSource does not support version "xenial" now

## Your distribution, identified as "xenial", is not currently supported, please contact NodeSource at https://github.com/nodesource/distributions/issues if you think this is incorrect or would like your distribution to be considered for support

[givetimetolife]

I upgraded my operating system so that I can install node normally, But i don't want to do this

RUN apt-get update && apt-get upgrade -y -o Dpkg::Options::="--force-confold"

# prepare node env
RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - && apt-get install -y nodejs

[JesusPaz]

Ubuntu Xenial is currently supported and any issue during its installation is related to the environment and the network in which the installation is being carried out.

Similar issues with installations on subsystems and behind proxies: #1002 #947 #904 #9 and many more.

It's not a problem related to distributions or compatibility, but to the proxy setup.