Error: Couldn't find preset “es2015” relative to directory “/Users/username”

Question

I get the following error when trying to use gulp-babel:

Error: Couldn\'t find preset \"es2015\" relative to directory \"/Users/username\"

Answer 1

I encountered the same issue and it was because I had a .babelrc file in the root of my directory.

To fix this add babelrc: false inside the babel options:

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

gulp.task('babel', function() {
    return gulp.src('./app/main.js')
    .pipe(babel({
        babelrc: false,
        presets: ['babel-preset-es2015']
    }))
    .pipe(gulp.dest('dist'));
});

Answer 2

I had the same issue, and this second suggestion helped me noticing my problem and maybe it's yours too.

I npm install gulp-babel-es2015 then didn't include it in the gulpfile at all.

Then babel({presets: ['es2015']}) option is just a string as shown in the examples here https://www.npmjs.com/package/gulp-babel .

Here is my gulpfile.

var gulp = require('gulp'),
    babel = require('gulp-babel');

gulp.task('babelify', () => {
    gulp.src('js/*.js')
        .pipe(babel({
            presets: ['es2015']
        }))
    .pipe(gulp.dest('alljs'));
});

gulp.task('default', ['babelify']);

Also, as from this issue here, https://github.com/laravel/elixir/issues/354

Suggestions are you should update node to version 5.x.x and npm to 3.x.x.

Answer 3

You only need to install babel-preset-es2015:

CLI usage example:

npm install babel-cli babel-preset-es2015

Answer 4

I just used this exact gulpfile.js

var babel = require('gulp-babel');
var es2015 = require('babel-preset-es2015');
var gulp = require('gulp');

gulp.task('babel', function() {
    return gulp.src('./app/main.js')
    .pipe(babel({
        presets: [es2015]
    }))
    .pipe(gulp.dest('dist'));
});

and it worked for me. I only installed babel, babel-preset-es2015 and gulp-babel.

Answer 5

I just had a really weird one. I installed all the babel tools with one big long npm install command, and everything installed without errors... except it was throwing the error documented in this thread, at runtime.

I noticed the version was 0.0.0 in the package.json file, so I ran npm install --save-dev babel-preset-es2015 again and it worked and placed a SECOND key into my package.json file:

   "devDependencies": {
     "babel-cli": "^6.24.1",
     "babel-core": "^6.24.1",
     "babel-polyfill": "^6.23.0",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-es2015": "0.0.0",
     "babel-preset-stage-2": "^6.24.1",
     "eslint": "^3.19.0"
   }

I just removed the botched entry and it cleared up this relative to directory error.

Answer 6

My problem was that other program was using a file involved in the compilation process (probably the .babelrc). Closing several apps solved my problem.

For me was Dropbox or even Brackets Editor with eqFTP extension.

Greetings