Recently, we\'ve upgraded to ESLint 3.0.0 and started to receive the following message running the grunt eslint task:
grunt eslint
> $ grunt eslint Running \"
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'}))