[Solved] rvm_error "There has been an error while updating your system using \`apt-get\`

Problem:

Running into the following error when trying to install ruby-2.7.2 on Ubuntu 20.04 via rvm:

...
    rvm_error "There has been an error while updating your system using \`apt-get\`.
It seems that there are some 404 Not Found errors for repositories listed in:

    /etc/apt/sources.list
    /etc/apt/sources.list.d/*.list

Make sure that all repositories are available from your system and verify your setup by running manually:

    sudo apt-get update

Make sure that it works correctly before proceeding with RVM.

If you are working from the GUI instead of the terminal, you might want to verify and fix broken
repositories using \"Software & Updates\" application.
...

Note: this error is displayed in a log file after the following generic error message is displayed in the terminal after running the command rvm install 2.7.2:

Searching for binary rubies, this might take some time.
Found remote file https://rvm_io.global.ssl.fastly.net/binaries/ubuntu/20.04/x86_64/ruby-2.7.2.tar.bz2
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system...
Error running 'requirements_debian_update_system ruby-2.7.2',
please read /home/sean/.rvm/log/1657594112_ruby-2.7.2/update_system.log
Requirements installation failed with status: 1.

Solution:

This issue was resolved for me by running the following command:

rvm autolibs disable

followed by my initial command:

rvm install 2.7.2

Apparently the autolibs feture that is built into RVM is playing a part in causing this error. More on autolibs in the official RVM docs

Conclusion

Thanks for reading this blog post!

If you have any questions or concerns please feel free to post a comment in this post and I will get back to you when I find the time.

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