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Cannot install compass using terminal
I am getting the following error,
Fetching: sass-3.4.21.gem (100%) ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/sass I am using El Captain. Can anyone help me this issue?
Wesley Chitwood1,973 Points
I get this error: ERROR: Error installing compass: ERROR: Failed to build gem native extension.
current directory: /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.10/ext/ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby -r ./siteconf20160612-769-1nedfab.rb extconf.rb mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/include/ruby.h
extconf failed, exit code 1
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.10 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-15/2.0.0/ffi-1.9.10/gem_make.out