I installed all the dependencies for pophealth:
" https://github.com/pophealth/popHealth/wiki/Installation "
but when I run Bundle Install , I get the following error:
Gem:Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb extconf.rb:1:in 'require': no such file to load -- mkmf (LoadError) from extconf.rb:1 Gem Files will remain installed in /home/pophealth/.bundler/tmp/3335/gems/bson_ext-1.5.1 for inspection results logged to /home/pophealth/.bundler/tmp/3335/gems/bson_ext-1.5.1/ext/cbson/gem_make.out An error occurred while installing bson_ext (1.5.1), and bundler cannot continue. Make sure that 'gem install bson_ext -v '1.5.1'' succeeds before bundling.
when i run gem install bson_ext -v '1.5.1' i get the following error
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