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Editorial Team
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Asked: 2026-05-15T15:09:26+00:00

I wanted to install ruby 1.9.1 instead of the older version so I ran

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I wanted to install ruby 1.9.1 instead of the older version so I ran this command on Ubuntu:

sudo apt-get install ruby1.9.1-full

After the install was complete, I got the following error(s):

WARNING: Installing to ~/.gem since /var/lib/gems/1.9.1 and
/var/lib/gems/1.9.1/bin aren’t both writable.
WARNING: You don’t have /home/brooks/.gem/ruby/1.9.1/bin in your PATH,
gem executables will not run.

When I run “ruby -v” (without the quotes) I get the following response: 

bash: /usr/bin/ruby: No such file or directory

So my questions are: 1) Why is it so difficult to install ruby, 2) How can I resolve this problem?

Thank you for your help!

Br

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1 Answer

  1. Editorial Team

    After the install was complete, I got the following error(s):

    Those aren’t errors. They’re warnings issued by rubygems. If you want to avoid them run rubygems with sudo or add add /home/brooks/.gem/ruby/1.9.1/bin to your PATH variable. Or if you don’t care that you can’t run executables installed by gems without specifying the whole path, just ignore them.

    When I run “ruby -v” (without the quotes) I get the following response:

    bash: /usr/bin/ruby: No such file or directory

    Try ruby1.9.1 -v

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