Problem with eslintrc: "indent" is invalid: Value "4" must be an enum value

I use gulp-eslint as follows:

var standaloneScript = 'public/api/config-api.js';
gulp.task('eslint', function () {
    return gulp.src(standaloneScript)
        .pipe($.eslint())
        .pipe($.eslint.format())
        .pipe($.eslint.failOnError());
});

In my root folder I have a eslintrc specified. But eslint crashes because of the indent rule. It says:

    Configuration for rule "indent" is invalid:
    Value "4" must be an enum value.

//...
"rules": {
        "indent": [4, 4],
//...

What can I do? Removing indent works, but this is not an option for me. Could you help me to resolve this issue?

[tschoartschi]

@shinnn thanks for the hint. Now it works. If someone has the same problem, defining the indent rule as

{
//...
"indent": [2, 4]
//...
}

worked for me. Why I didn’t thought it is a problem with the rule is, that I used this exact .eslintrc with ember-cli-eslint also and there I had never any problems.

[shinnn]

@jonathanKingston I won’t, because I’m currently not an actual user of ember-cli-eslint. I just needed to look into your code to answer the question reported here.