nokogiri gem installation error

Question

I know there are a lot of questions about this gem but no answer has worked for me.

When I run in SSH gem install nokogiri I get this error:

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Answer 1

Finally, the problem was caused by nokogiri itself by shipping it's own libxml2 that's incompatible with some systems.
So to install nokogiri I had to tell it that it should use the system libraries.

I installed it manually by:

gem install nokogiri -v 1.6.2.1 -- --use-system-libraries

And it worked well. Other answers didn't solve it.