I'm having trouble installing a Ruby gem. What should I do?
First, can you tell me the specific gem you're trying to install and the error message you're receiving?
I'm trying to install 'rails', and I get a 'gem not found' error.
It sounds like the gem might not be available in your current gem sources. Try running gem sources -a https://rubygems.org
to add the official source.
I did that, but now I get a permission denied error.
This usually happens when you don't have the necessary permissions. You can try using sudo gem install rails
or consider using a Ruby version manager like RVM or rbenv.
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