bin/encore dev-server: Path must be a string

Hi, I’m trying to use webpack-encore in my Symfony3 project with this doc but when I execute: ./node_modules/.bin/encore dev-server

I’m getting this error:

path.js:7
    throw new TypeError('Path must be a string. Received ' + inspect(path));
    ^

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.join (path.js:1211:7)
    at find (/Users/xxx/Sites/tp/node_modules/babel-loader/lib/resolve-rc.js:11:21)
    at module.exports (/Users/xxx/Sites/tp/node_modules/@symfony/webpack-encore/lib/config/parse-runtime.js:64:47)
    at Object.<anonymous> (/Users/xxx/Sites/xxx/tp-trepia/node_modules/@symfony/webpack-encore/bin/encore.js:18:23)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

My config: macOS Sierra 10.12.5 node -v -> v6.11.0 npm -v -> 3.10.10

Looking on google, some people advise to downgrade to node v5 but the same error appears.

Thanx

[weaverryan]

Thanks @stof I’m working on a PR right now!

[LMSzor]

I had the same problem, and setup posted @bogdaniel really helped. Somehow placing babel-loader before @symfony/webpack-encore, and updating @symfony/webpack-encore to 0.8 from 0.7.2 fixed things up for me.