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

        /usr/bin/ruby1.8 extconf.rb
creating Makefile

make
gcc -I. -I/usr/lib/ruby/1.8/x86_64-linux -I/usr/lib/ruby/1.8/x86_64-linux -I. -D_FORTIFY_SOURCE=2   -fPIC -fno-strict-aliasing -g -g -O2  -fPIC  -O0 -std=c99  -c binding_of_caller.c
binding_of_caller.c:4:21: fatal error: vm_core.h: No such file or directory
compilation terminated.
make: *** [binding_of_caller.o] Error 1


Gem files will remain installed in /tmp/bundler20140729-20647-1fyu0fh/binding_of_caller-0.7.2/gems/binding_of_caller-0.7.2 for inspection.
Results logged to /tmp/bundler20140729-20647-1fyu0fh/binding_of_caller-0.7.2/gems/binding_of_caller-0.7.2/ext/binding_of_caller/gem_make.out
An error occurred while installing binding_of_caller (0.7.2), and Bundler cannot continue.
Make sure that `gem install binding_of_caller -v '0.7.2'` succeeds before bundling.