When you're installing a gem with:
gem install GEM
And you get the message:
The 'GEM' native gem requires installed build tools
Make sure you have DevKit installed and that it is registered:
- Open a terminal / command prompt
- Navigate to the folder where you placed DevKit, e.g.
DevKit-mingw64
- Run
ruby dk.rb init
- Edit the
config.yml
file - Add the Ruby path you want to use DevKit with
- Save the file
- Run
ruby dk.rb install