知道如何解决这个问题吗？
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
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No source for ruby-1.9.3-p194 provided with debugger-ruby_core_source gem.
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