[RESOLVIDO] Cannot read property 'fileLoader' of undefined

Em module em vez de:

            { 
                test: /\.(woff|woff2)(\?v=\d+\.\d+\.\d+)?$/, 
                loader: 'url-loader?limit=10000&mimetype=application/font-woff' 
            },
            { 
                test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/, 
                loader: 'url-loader?limit=10000&mimetype=application/octet-stream'
            },
            { 
                test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, 
                loader: 'file-loader' 
            },
            { 
                test: /\.svg(\?v=\d+\.\d+\.\d+)?$/, 
                loader: 'url-loader?limit=10000&mimetype=image/svg+xml' 
            }  

Utilizei:

{
                test: /\.(ttf|eot|svg|gif|jpg|png|woff|woff2)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
                use: [
                  {
                    loader: 'file-loader',
                    options: {
                      limit: 10000,
                    },
                  },
                ],
              }

no package,.json:

{
  "name": "client",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build-dev": "webpack --config webpack.config.js",
    "build-prod": "cross-env NODE_ENV=production webpack --config webpack.config.js",
    "start": "webpack-dev-server"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bootstrap": "^3.3.7"
  },
  "devDependencies": {
    "babel-core": "^6.25.0",
    "babel-loader": "^7.1.0",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-preset-es2017": "^6.24.1",
    "babili-webpack-plugin": "^0.1.1",
    "cross-env": "^5.0.1",
    "css-loader": "^3.2.0",
    "file-loader": "^4.2.0",
    "reflect-metadata": "^0.1.13",
    "style-loader": "^1.0.0",
    "url-loader": "^2.1.0",
    "webpack": "^4.39.1",
    "webpack-cli": "^3.3.6",
    "webpack-dev-server": "^3.8.0"
  }
}

Está funcionando normalmente com essas versões e alterações que eu fiz