Unable to transpile ES6 > ES5

Cannot find module 'core-js/library/fn/get-iterator'

This error is being thrown with the following stack when using presets: [“es2015”]. When not passing any options, the output file is not transpiled, it is an exact mirror of the original.

npm 2.14.7 node v4.2.1 gulp 4.0.0-alpha.1 gulp-babel 6.1.0

            return gulp.src([
                "./**/*.es6.js",
            ])
                .pipe(babel({
                    "presets": ["es2015"]
                }))
                .pipe(gulp.dest("./dist"))

[allyrippley]

I was able to solve this by running npm i core-js --save, not sure if you can get away with just using it as a dev dependency. hope this saves someone some time

[trevoro]

Aha. So the issue is that we’re not reading through the changes well enough

You have to ensure you install the babel-preset-es2015 package using

npm install --save-dev babel-preset-es2015 then update your .babelrc file to include

{
  "presets": ["es2015"]
}

then it started working again for me.