Problems with ESLint 2.10.1 and babel-eslint

[bebraw]

There's something going on with ESLint 2.10.1, eslint-loader, and babel-eslint combination. They had an issue in 2.10.0 that broken eslint-loader and babel-eslint. It was fixed in 2.10.1. It still fails with eslint-loader, though.

I set up an example illustrating this. If you execute npm run test:lint, the linting process completes successfully. If you run npm start, you'll start seeing errors like this:

ERROR in ./app/index.jsx

.../react-boilerplate/app/index.jsx
  1:1  error  Parsing error: The keyword 'import' is reserved

✖ 1 problem (1 error, 0 warnings)


ERROR in ./app/Notes.jsx

.../react-boilerplate/app/Notes.jsx
  1:1  error  Parsing error: The keyword 'import' is reserved

✖ 1 problem (1 error, 0 warnings)

It's not picking up the parser for some reason. I did try setting

  eslint: {
    configFile: path.join(__dirname, '.eslintrc')
  }

at my common configuration to make sure it really points to the configuration but this didn't have any effect.

It's possible this is ESLint core issue and that their fix missed some corner case breaking ESLint. I am opening the issue here to see if other users are seeing similar behavior with this particular combination.

[MoOx]

Waiting for eslint/eslint#6182 to be fixed.

[swarthy]

As a temporary solution you can set parser in query in webpack.config.js

preLoaders: [
      {
        test: /\.js$/,
        loader: 'eslint?parser=babel-eslint',
        exclude: /node_modules/,
      }
    ],

[sebinsua]

I'm getting an error which looks like:

  1:1  error  Parsing error: 'import' and 'export' may appear only with 'sourceType: module'

Not sure if it's the same problem.

[bebraw]

@sebinsua You could try against eslint/eslint#6183 . There's a proposed fix.

[bebraw]

Closing given the combination works again. 👍