##First, install PackageControl## Open Console, keys: Ctrl + ~ Enter: import urllib.request,os; pf = 'Package Control.sublime-package'; ipp = sublime.installed_packages_path(); urllib.request.install_opener( urllib.request.build_opener( urllib.request.ProxyHandler()) ); open(os.path.join(ipp, pf), 'wb').write(urllib.request.urlopen( 'http://sublime.wbond.net/' + pf.replace(' ','%20')).read())

Note: If you want auto install packages , you must be install Package Control first!

##Emmet install## When install Emmet plugin you need install PyV8 package. Try to manually install PyV8 from https://github.com/emmetio/pyv8-binaries eg windows: \Sublime Text 3\Installed Packages\PyV8_DOWNLOAD_FILE_