An error occurred while installing debug_inspector (0.0.2), and Bundler cannot continue

Question

Migrating my rails app from 3.2 to 4.0.0 and ruby 2.2.2 to 2.2.4

while doing bundle install am getting (An error occurred while installing debug_inspector (0.0.2), and B

Answer 1

You're missing build dependencies. Do the following:

$ sudo apt-get update

$ sudo apt-get install build-essential

Then run bundler again.