If your system is configured properly, you’ll be able to compile Nokogiri. Every time you install the Nokogiri gem, you’ll wait (as long as five minutes).To save time, install the Nokogiri gem in the During installation, Nokogiri will display two lengthy messages in the console.
Developers often install the newest version of Rails but neglect other components needed for Rails to run successfully. The Rails Apps project provides example applications that developers use as starter apps.
Hundreds of developers use the apps, report problems as they arise, and propose solutions.
Nokogiri is a gem that requires compilation for your specific operating system.
As such, if your system environment doesn’t match Nokogiri’s requirements, compilation of Nokogiri will fail.
Don’t simply replace an old version of Rails with another.