Webpack: Uncaught SyntaxError: Unexpected token import

[vaske]

On windows 10 with fresh new vue generated app, I get into issue when open in browser
localhost:8080 in console see this error:

main.js?3479:3 Uncaught SyntaxError: Unexpected token import
    at Object.<anonymous> (app.js:696)
    at __webpack_require__ (app.js:556)
    at fn (app.js:87)
    at Object.<anonymous> (app.js:587)
    at __webpack_require__ (app.js:556)
    at app.js:579
    at app.js:582

````

and this is what I see in console

DONE Compiled successfully in 1133ms

Listening at http://localhost:8080
````

node version v6.3.1
npm version 3.10.5

[LinusBorg]

This probably means that babel has not converted your code to ES5.

Do you have a .babelrc file in the project root? This one:

https://github.com/vuejs-templates/webpack/blob/master/template/.babelrc

If this file is missing, that's probably because vue-cli did not have the permissions required to create it.

[learntoswim]

I've also started seeing this error using the latest vue-cli install (2.8.0).

$ node -v
v6.9.1
$ npm -v
3.10.8
$ vue -V
2.8.0
$ vue init webpack my-project
$ cd my-project
$ npm i
$ npm run dev

Then I attempt to add a module, and I get a browser console error: Uncaught SyntaxError: Unexpected token export

Files:

mock/facebookAuth.js

export const facebookAuthMock = {
  accessToken: ...
  ...
};

src/main.js

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue';
import App from './App';
import { facebookAuthMock } from '../mock/facebookAuth';

console.log(facebookAuthMock);

/* eslint-disable no-new */
new Vue({
  el: '#app',
  template: '<App/>',
  components: { App },
});

.babelrc

{
  "presets": ["es2015", "stage-2"],
  "plugins": ["transform-runtime"],
  "comments": false,
  "env": {
    "test": {
      "plugins": [ "istanbul" ]
    }
  }
}

package.json

  "devDependencies": {
    "autoprefixer": "^6.4.0",
    "babel-core": "^6.0.0",
    "babel-eslint": "^7.0.0",
    "babel-loader": "^6.0.0",
    "babel-plugin-transform-runtime": "^6.0.0",
    "babel-preset-es2015": "^6.0.0",
    "babel-preset-stage-2": "^6.0.0",
    "babel-register": "^6.0.0",
    "chalk": "^1.1.3",
    "connect-history-api-fallback": "^1.1.0",
    "css-loader": "^0.25.0",
    "eslint": "^3.7.1",
    "eslint-friendly-formatter": "^2.0.5",
    "eslint-loader": "^1.5.0",
    "eslint-plugin-html": "^1.3.0",
    "eslint-config-airbnb-base": "^8.0.0",
    "eslint-import-resolver-webpack": "^0.6.0",
    "eslint-plugin-import": "^1.16.0",
    "eventsource-polyfill": "^0.9.6",
    "express": "^4.13.3",
    "extract-text-webpack-plugin": "^1.0.1",
    "file-loader": "^0.9.0",
    "friendly-errors-webpack-plugin": "^1.1.2",
    "function-bind": "^1.0.2",
    "html-webpack-plugin": "^2.8.1",
    "http-proxy-middleware": "^0.17.2",
    "json-loader": "^0.5.4",
    "cross-env": "^3.1.3",
    "karma": "^1.3.0",
    "karma-coverage": "^1.1.1",
    "karma-mocha": "^1.2.0",
    "karma-phantomjs-launcher": "^1.0.0",
    "karma-sinon-chai": "^1.2.0",
    "karma-sourcemap-loader": "^0.3.7",
    "karma-spec-reporter": "0.0.26",
    "karma-webpack": "^1.7.0",
    "lolex": "^1.4.0",
    "mocha": "^3.1.0",
    "chai": "^3.5.0",
    "sinon": "^1.17.3",
    "sinon-chai": "^2.8.0",
    "inject-loader": "^2.0.1",
    "babel-plugin-istanbul": "^3.0.0",
    "phantomjs-prebuilt": "^2.1.3",
    "chromedriver": "^2.21.2",
    "cross-spawn": "^4.0.2",
    "nightwatch": "^0.9.8",
    "selenium-server": "2.53.1",
    "semver": "^5.3.0",
    "opn": "^4.0.2",
    "ora": "^0.3.0",
    "shelljs": "^0.7.4",
    "url-loader": "^0.5.7",
    "vue-loader": "^10.0.0",
    "vue-style-loader": "^1.0.0",
    "vue-template-compiler": "^2.1.0",
    "webpack": "^1.13.2",
    "webpack-dev-middleware": "^1.8.3",
    "webpack-hot-middleware": "^2.12.2",
    "webpack-merge": "^0.14.1"
  },

This code works in the same project, but on the previous version of vue-cli

[bduffany]

I have the same problem as @vaske . Same npm and node versions.

[LinusBorg]

@learntoswim Your problem results from the fact that babel-loader is configured to transpile js files in /srconly, and you seem to have your mock files outside of that folder.

https://github.com/vuejs-templates/webpack/blob/master/template/build/webpack.base.conf.js#L66-L68

Just adjust the config to include the mocks folder and you are fine.

[learntoswim]

@LinusBorg That was it. Silly mistake on my behalf. Thank you.

[LinusBorg]

Closing because of inactivity of OP

[siempay]

I have the same problem here; I just installed everything and got this error

[LinusBorg]

@siempa So I ask you as well:

Do you have a .babelrc file in the project root? This one:
https://github.com/vuejs-templates/webpack/blob/master/template/.babelrc

And also; is the file with the error in the /src folder or outside of it?

[siempay]

I'v already read your comments up; I already have the .babelrc just like that one;
the file with the error is src/app.js

[vaske]

@LinusBorg yeah I have it as well.

[LinusBorg]

Hm. Honestly, I have no further ideas. All I can say is that it seems that Windows 10 often play the role of a troublemaker in a lot of cases :(

[vaske]

@LinusBorg yeah I drop win completely and continue with it on Mac.

[cafe4it]

package.json

    "vue-loader": "^11.0.0",
    "vue-template-compiler": "^2.1.10",

This worked for me.