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

Am using macOS Sierra.

Went to nokogiri documentation and followed this:

ON MAC OSX

Installation should Just Work™ using Nokogiri’s vendored libxml2 and libxslt.

First, make sure you have the latest version of RubyGems and xcode commandline tools:

1 gem update --system

2 xcode-select --install

Then install nokogiri:

1 gem install nokogiri