If you are using bower, run the following commands:
bower install --save PolymerElements/iron-elements bower install --save PolymerElements/paper-elements bower install --save PolymerElements/gold-elements bower install --save PolymerElements/neon-elements bower install --save PolymerElements/platinum-elements bower install --save GoogleWebComponents/google-web-components bower install --save PolymerElements/app-elements
Aditya chawla
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