Uncaught TypeError: Cannot read property 'createLTR' of undefined

Hi There - been battling with this for hours unsuccessfully. I keep getting the error Uncaught TypeError: Cannot read property ‘createLTR’ of undefined when I load the DateRangePicker component:

Not using webpack as in the examples but browserify to bundle up the app.js seperately to the dependencies, might this be causing the problem?

gulp.task('vendorScripts', function () {
  // Ensure package is updated.
  readPackage();
  var vb = browserify({
    debug: true,
    require: pkg.dependencies ? Object.keys(pkg.dependencies) : []
  });
  return vb.bundle()
    .on('error', gutil.log.bind(gutil, 'Browserify Error'))
    .pipe(source('vendor.js'))
    .pipe(buffer())
    .pipe(sourcemaps.init({loadMaps: true}))
    .pipe(sourcemaps.write('./'))
    .pipe(gulp.dest('.tmp/assets/scripts/'))
    .pipe(reload({stream: true}));
});

Versions of the various packages:

"react": "16.8.6",
"react-dates": "^20.2.5",
"react-dom": "16.8.6",
"browserify": "^16.2.2",

[ljharb]

Try https://github.com/airbnb/react-dates#initialize

[reZach]

This is still a issue in December. Has this not gotten fixed yet in the master branch? I am not doing anything with a bundle as @rustyb describes - so I am stuck how to fix this.