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I have got this error when running bundle install 

Gem::InstallError: The 'puma' native gem requires installed build tools.

Please update your PATH to include build tools or download the DevKit
from 'http://rubyinstaller.org/downloads' and follow the instructions
at 'http://github.com/oneclick/rubyinstaller/wiki/Development-Kit'

I'm using RailsInstaller which already has DevKit.

I didn't have this problem before but I seem to get it after I changes the ruby version from 2.2.4 to 2.2.5. I'm using a windows computer. Any idea how to solve this issue?

bent al7egaz
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1 Answers1

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I solved the problem by following these instruction:

  • download devkit from here.

  • Install the file in DevKit folder

  • open cmd and navigate to the folder

  • Copy the path of the ruby folder you installed in C drive and paste it in the DevKit\config.yml. Change ‘/’ in the path to ‘\’.

It should look like this:

# Example:
#
# ---
# - C:/ruby19trunk
# - C:/ruby192dev
#
---
- C:\Ruby22
  • Run ruby dk.rb install
  • Back to your rails folder, run bundle install and you should not have any errors
bent al7egaz
  • 53
  • 7