babel ES7 Async - regeneratorRuntime is not defined
<p>I'm using browserify + gulp + babel in my project, and having problem with ES7 features. These are what I installed:</p>

<ul>
<li>babel-plugin-transform-async-to-generator@6.8.0</li>
<li>babel-plugin-transform-decorators-legacy@1.3.4  // for use decorators</li>
<li>babel-polyfill@6.9.1</li>
<li>babel-preset-es2015@6.9.0</li>
<li>babel-preset-es2016@6.11.0</li>
<li>babel-preset-stage-0@6.5.0</li>
<li>babelify@7.3.0</li>
<li>browserify@13.0.1</li>
<li>gulp</li>
<li>gulp-sourcemaps</li>
<li>vinyl-buffer</li>
<li>vinyl-source-stream</li>
</ul>

<p>and this is my gulp code:</p>

<pre><code>gulp.task('build', () =&gt; {
    let buildPath;
    let destPath;

    buildPath = `./src`;
    destPath = `./dist`;

    return browserify(`${buildPath}/app.js`)
    .transform(babelify, { 
        presets: ["es2015", "es2016", "stage-0"],
        plugins: ["transform-decorators-legacy", "transform-async-to-generator"]
    })
    .bundle()
    .pipe(source('app.js'))
    .pipe(buffer())
    .pipe(sourcemaps.init({loadMaps: true}))
    .pipe(sourcemaps.write('./'))
    .pipe(gulp.dest(`${destPath}`));
});
</code></pre>

<p>and this is my js code:</p>

<pre><code>import 'babel-polyfill';

// Async Functions
function wait(t) {
    return new Promise((r) =&gt; setTimeout(r, t));
}

async function asyncMania() {
    console.log('1');
    await wait(1000);
    console.log('2');
}

asyncMania().then(() =&gt; console.log('3'));
</code></pre>

<p>When I try this, gets an error:</p>

<blockquote>
  <p>Uncaught ReferenceError: regeneratorRuntime is not defined</p>
</blockquote>

<p>Using <strong>require</strong> instead of <strong>import</strong> doesn't work either. Most of questions are using Webpack, not browserify and other approaches were not worked on me, so it will be very appreciate tell me how should I do.</p>

<p>And I have one more question, as you can see, I installed babel-preset-es2015 and babel-preset-es2016 both, and both are using. If I remove <strong>es2015</strong> plugin, can I still use ES6 features? And also I included <strong>babel-preset-stage-0</strong>, and as I know this is for experimental ES7 features. What actually <strong>babel-preset-es2016</strong> got?</p>