Warning: Couldn't find preset "env" relative to directory

[essteffan]

Hi Guys
I need to use babel in one project and I've installed and i get this error when running grunt (edited)
Warning: Couldn't find preset "env" relative to directory "/Users/essteffan/Sites/div//live..ro/web" Use --force to continue.

I'm using Grunt

and i have a concat before babel and after i have an uglify

My babel config is:

babel: {
options: {
sourceMap: true,
presets: ['@babel/preset-env']
},
dist: {
files: {
'../js/app.min.js': '../js/app.js'
}
}
},

If i comment this line i have no errors: '../js/app.min.js': '../js/app.js'
Somehow i thing around there is the problem.

Could you please advice how to make it work?

[xtuc]

Could you please share your package.json? have you installed @babel/preset-env?

[essteffan]

Sure, Thanks for quick response

{
"name": "Grunt",
"verion": "0.0.1",
"Description": "Grunt",
"devDependencies": {
"@babel/core": "^7.0.0-beta.46",
"@babel/preset-env": "^7.0.0-beta.46",
"babel-core": "^6.26.3",
"babel-preset-env": "^1.6.1",
"grunt": "~1.0.1",
"grunt-babel": "^7.0.0",
"grunt-contrib-compass": "~1.1.1",
"grunt-contrib-concat": "~1.0.1",
"grunt-contrib-jshint": "~1.1.0",
"grunt-contrib-uglify": "~3.3.0",
"grunt-contrib-watch": "~1.0.0",
"grunt-text-replace": "~0.4.0",
"load-grunt-tasks": "^4.0.0"
}
}

[xtuc]

Thanks, have you tried with earlier betas? I think your issue is due to the new config resolution. I would recommend you using babel.config.js at the root of your project.

The configuration there will be applied everywhere in your project. .babelrc is now only applied when it is in the current directory.

[essteffan]

I've added that in root, but how do i link Gruntfile.js to this file?
Sorry i'm a php developer, haven't used babel

[xtuc]

Could you please share your gruntfile?

[noobiek]

Hi,
Same thing here.

Couldn't find preset "@babel/env" relative to directory "/projects/geness-web-plugins/corp/grunt"

I don't think this is anyhow connected to contat/uglify.
Gruntfile contains this simple task.
babel: { options: { sourceMap: false, presets: ['@babel/preset-env'] }, dist: { files: { 'plugin.js': 'plugin.js' } } }
And I've tried installing whatever is suggested everywhere
{ "name": "UnderScoreTemplate", "version": "0.1.0", "devDependencies": { "@babel/preset-env": "^7.0.0-beta.46", "babel-core": "^6.26.3", "babel-loader": "^7.1.4", "eslint": "^4.17.0", "grunt": "^0.4.5", "grunt-babel": "^7.0.0", "grunt-contrib-concat": "^1.0.1", "grunt-contrib-cssmin": "^2.2.0", "grunt-contrib-jst": "^1.0.0", "grunt-contrib-uglify": "^3.3.0", "grunt-string-replace": "^1.3.1", "load-grunt-tasks": "^4.0.0" }, "dependencies": { "babel-preset-env": "^1.6.1" } }
And I've placed .babelrc and babel.config.js to same dir.
No luck.

[noobiek]

I started afresh.

babel.config.js from your post earlier.

Gruntfile.js file:
module.exports = function(grunt) {
require('load-grunt-tasks')(grunt);
grunt.initConfig({
babel: {
options: {
sourceMap: true,
presets: ['@babel/preset-env']
},
dist: {
files: {
'app.js': 'app.js'
}
}
}
});
grunt.registerTask('default', ['babel']);
}

.babelrc file;
{
"presets": [
["@babel/env", {
"targets": {
"browsers": ["last 2 versions", "safari >= 7"]
},
"useBuiltIns": "usage",
"debug": true
}]
]
}

package.json file:
{
"name": "grunt2",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"devDependencies": {
"@babel/core": "^7.0.0-beta.46",
"@babel/preset-env": "^7.0.0-beta.46",
"babel-core": "^6.26.3",
"grunt": "^1.0.2",
"grunt-babel": "^7.0.0",
"load-grunt-tasks": "^4.0.0"
}
}

Without babel-core I get
Loading "babel.js" tasks...ERROR
>> Error: Cannot find module 'babel-core'
Warning: Task "babel" not found. Use --force to continue.

With babel-core same result:
Warning: Couldn't find preset "@babel/env" relative to directory "/test/grunt" Use --force to continue.

Node is v9.11.1, btw.

[noobiek]

Switched to this "env" instead https://babeljs.io/docs/plugins/preset-env
It works.

[dave-green-uk]

Having a similar situation in one of our workflow repos.

In my Babel task...

options: {
	presets: [
		'@babel/preset-env'
	]
},

In my package.json

"@babel/core": "^7.0.0-beta.54",
"@babel/preset-env": "^7.0.0-beta.54",
"grunt-babel": "8.0.0-beta.0",

Error on grunt...

Warning: Cannot find module '@babel/preset-env' from <path>

Tried to replace the @babel/preset-env module with babel-preset-env, switching the preset to env in the Babel task as suggested above. Also tried dropping babel.config.js into the folder in question.

No joy. 🤔

[noobiek]

Hi @davetgreen

Since I made this work then you can too :)
Post your changed minimal configs here, please. Let's take a look.

My Gruntfile.js has babel task configed this way:

    babel: {
      options: {
        sourceMap: false,
        presets: ['env']
      },
      dist: {
        files: {
          'jsbundle.babel.js': 'jsbundle.js'
        }
      }
    }

And .babelrc in same folder:

{
  "presets": [
    ["env", {
      "targets": {
        "browsers": ["last 2 versions", "safari >= 7"]
      }
    }]
  ]
}

[Belsi]

I have the same problem and was fixed by add .babelrc file.

// babel.config.js
module.exports = {
  presets: [
    [
      '@babel/preset-env',
      {
        targets: {
          node: 'current',
        },
      },
    ],
  ],
  plugins: ['transform-flow-strip-types'],
};

and after add file:

// .babelrc
{
  "presets": ["env", "flow", "stage-1"]
}

It start work.