When trying to uninstall a gem (gem uinstall <gem-name>), I see:
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::RDoc
How do I successfully uninstall a gem?
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Based on info in this GitHub issue, I did:
gem install rdoc
After that, the error no longer appeared.
Tom Hale
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2I needed to install `gem install rdoc --no-document` because of [undefined method `reset' for RDoc::TopLevel:Class when installing a new Ruby gem](https://stackoverflow.com/q/38988161/387194) this happen when installing inside Docker. – jcubic Sep 03 '20 at 22:58
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1The funny thing about this is to uninstall a gem I need to install another gem first... uhmmm – Ουιλιαμ Αρκευα Aug 02 '21 at 12:25
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It's actually insane that to uninstall something you need to install something, but it works – hdante Aug 21 '21 at 23:00
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not working.... – Maurice Raguse Oct 31 '22 at 09:52
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@jcubic I am getting error `uninitialized constant Gem::RDoc` even when using `gem install rdoc --no-document` (under cygwin) – user1767316 Nov 13 '22 at 20:32
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removing ~/.gemrc (where I used to put `gemhome: /usr/share/rubygems`) and keeping working with `export PATH=$PATH:~/bin` in .bashrc did the trick. – user1767316 Nov 13 '22 at 20:57
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@user1767316 I have no idea. Please ask a separate question. – jcubic Nov 14 '22 at 21:46