"No ESLint configuration found" error

Question

Recently, we've upgraded to ESLint 3.0.0 and started to receive the following message running the grunt eslint task:

> $ grunt eslint
Running "eslint:files" (eslint) task
Warning: No ESLint configuration found. Use --force to continue.

Here is the grunt-eslint configuration:

var lintTargets = [
    "<%= app.src %>/**/*/!(*test|swfobject)+(.js)",
    "test/e2e/**/*/*.js",
    "!test/e2e/db/models/*.js"
];
module.exports.tasks = {
    eslint: {
        files: {
            options: {
                config: 'eslint.json',
                fix: true,
                rulesdir: ['eslint_rules']
            },
            src: lintTargets
        }
    }
};

What should we do to fix the error?

Answer 1

The error you are facing is because your configuration is not present. To configure the eslint type

eslint --init

then configure as your requirement.

then execute the project again.

Answer 2

Try to swap config with configFile. Then :

1. Create eslint.json file and
2. Point the right location of it (relative to Gruntfile.js file)
3. Place some configuration in that file (eslint.json), i.e.:

.

{
    "rules": {
        "eqeqeq": "off",
        "curly": "warn",
        "quotes": ["warn", "double"]
    }
}

for more examples, go here.

Answer 3

I've had the same error. It seems to need configuration.

Go to your project root & run in terminal

./node_modules/.bin/eslint --init

Answer 4

I hade the same problem with Gulp and running "gulp-eslint": "^3.0.1" version. I had to rename config: to configFile in Gulp task

.pipe(lint({configFile: 'eslint.json'}))