An error occurred while installing debugger-linecache (1.1.1), and Bundler cannot continue

Question

Any idea how to fix this?

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

/home/durrantm/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb 
checking for vm_core.h... no
checking for vm_core.h... no
Makefile creation failed
**************************************************************************
No source for ruby-1.9.3-p194 provided with debugger-ruby_core_source gem.
**************************************************************************

Answer 1

I had this issue after updating to a newer patch version of ruby. Unfortunately the header files gem "debugger-ruby_core_source" was locked in to an earlier version in the Gemfile.lock so it didn't have the required header files.

All you need to do is update that gem by doing:

bundle update debugger-ruby_core_source

You should be able to bundle install afterwards.

If you aren't using bundler then just install the latest version before trying to install debugger:

gem install debugger-ruby_core_source