Comment by Raphmedia

Come on, take the time to learn your tools instead of blindly mashing things together.

Step 1 : npm install --save-dev gulp-typescript-babel

Step 2:

var gtb = require('gulp-typescript-babel');

gulp.task('compile', function () { gulp.src(config.typescript) .pipe(gtb({incremental: true, configFile: 'tsconfig.json'}, {presets: ['es2015']})) .pipe(gulp.dest(config.output)) });

Step 3: Enjoy.