message: Fix CI build error in gulpfile.js: async funcitons are not supported in node v6
diff: @@ -21,10 +21,11 @@ ${moduleHeader}
  export const PACKAGE_VERSION = "[VERSION]";
  `;
  -async function setVersion() {
  +function setVersion(cb) {
  var pkg = require("./package.json");
  var fs = require("fs");
  fs.writeFileSync("src/Version.ts", versionFile.replace("[VERSION]", pkg.version));
  + cb();
  }
  -exports.setVersion = series(setVersion);
  +exports.setVersion = setVersion;
  