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Editorial Team
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Asked: 2026-05-19T00:30:00+00:00

i originally followed these steps to get a RoR environmentgoing: https://help.ubuntu.com/community/RubyOnRails that worked. then

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i originally followed these steps to get a RoR environmentgoing: https://help.ubuntu.com/community/RubyOnRails

that worked. then i put 1.9.2 on here. then i decided i want the original setup, did a “whereis ruby” and deleted those directories manually.

that fubar’d my ruby installation. i can’t use the repository to what i originally had. how can i purge ruby from completely and start fresh?

right now the specific error is this: 

/usr/lib/ruby/1.8/rubygems.rb:11:in `require': no such file to load -- thread (LoadError)
        from /usr/lib/ruby/1.8/rubygems.rb:11
        from /usr/bin/gem1.8:8:in `require'
        from /usr/bin/gem1.8:8
tipu@tipu_ubuntu:~$
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1 Answer

  1. Editorial Team

    You’re not giving enough real information to be specific, but this is what I’d try:

    1. Use apt-search to locate Ruby 1.8.7 for your OS version.
    2. Using apt-get, uninstall that version so you’re back to what APT thinks is a clean slate.
    3. Again using apt-get, reinstall that version so you’re back to what APT thinks is a normal installation.

    From that point, I would STOP messing with the system Ruby, and instead use RVM to manage and install any new Ruby and gems installations into RVM’s ~/.rvm sandbox.

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