require()

in polymer/lib/utils/require_shim.js [22:30]


      require(id) {
        if (id === 'webcomponentsjs.custom_elements.auto_es5_shim') {
          // we're in a (deprecated) uncompiled configuration, that file is
          // unnecessary
          return;
        }
        throw new Error(
            `Called goog.require without loading //javascript/closure:base`);
      }