I'm trying to use gulp-babel so I can start writing some ES6 / ES2015 code inside of my ES5 app.

var gulp          = require('gulp'),

    gutil         = require('gulp-util'),

    gulpif        = require('gulp-if'),

    uglify        = require('gulp-uglify'),

    concat        = require('gulp-concat'),

    sass          = require('gulp-ruby-sass'),

    streamqueue   = require('streamqueue'),

    sourcemaps    = require('gulp-sourcemaps'),

    templateCache = require('gulp-angular-templatecache'),

    htmlReplace   = require('gulp-html-replace'),

    runSequence   = require('run-sequence'),

    stripDebug    = require('gulp-strip-debug'),

    del           = require('del'),

    es            = require('event-stream'),

    webpack       = require('webpack-stream'),

    babel         = require('gulp-babel'),

    browserSync   = require('browser-sync').create();

And lower down in my code, here is where the problem lies:

gulp.task('build-min-bundle', function() {

    gutil.log(gutil.colors.blue.bold(' Compiled bundle file contains these modules:'));

    for (var i=0; i<paths.scripts.length; i++) {

        gutil.log(gutil.colors.yellow.bold('  '+paths.scripts[i]));

    }

    return gulp.src(paths.bundle)

    .pipe(stripDebug())

    .pipe(concat(dist))

    .pipe(babel()) // <--

    .pipe(uglify())

    .on('error', errorlog)

    .pipe(gulp.dest('app/assets/js'));

});

I originally tried this first:

.pipe(babel({

    presets: ['es2015']

}))

Argument name clash in strict mode (2774:5)