Error while installing Rails gem on Windows

Question

I'm trying to install Ruby on Rails on Windows. After successfully installing Ruby, when I run ruby -v , it returns ruby 2.4.4 as expected. The gem application is installed and is version 2.77. But when I try executing the command:

gem install rails

it gives the following error:

C:\>gem install rails
ERROR:  Loading command: install (ArgumentError)
        unknown encoding name - CP720
ERROR:  While executing gem ... (NoMethodError)
    undefined method `invoke_with_build_args' for nil:NilClass

How do I fix this error so I can install Ruby on Rails on Windows?

Answer 1

As mentioned in this link

Run this command:

chcp 1252

And run your command again.