#02. WebpackOptionsValidationError

[istiaqiut]

I tried to run npm run server after following #2. Project Setup: Render react component. and got following error-
/home/***/Desktop/reactcont/node_modules/webpack/lib/webpack.js:19
throw new WebpackOptionsValidationError(webpackOptionsValidationErrors);

WebpackOptionsValidationError: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.

• configuration.resolve.extensions[0] should not be empty.
  at webpack (/home//Desktop/reactcont/node_modules/webpack/lib/webpack.js:19:9)
  at Object. (/home//Desktop/reactcont/server/index.js:10:27)
  at Module._compile (module.js:541:32)
  at loader (/home//Desktop/reactcont/node_modules/babel-register/lib/node.js:144:5)
  at Object.require.extensions.(anonymous function) [as .js] (/home//Desktop/reactcont/node_modules/babel-register/lib/node.js:154:7)
  at Module.load (module.js:456:32)
  at tryModuleLoad (module.js:415:12)
  at Function.Module._load (module.js:407:3)
  at Function.Module.runMain (module.js:575:10)
  at /home/***/Desktop/reactcont/node_modules/babel-cli/lib/_babel-node.js:155:24
  [nodemon] app crashed - waiting for file changes before starting...

[dborovsky]

If you are using webpack 2, extensions: [' ', '.js'] can`t include empty elements in array. try [ '.js']. or downgrade to webpack v.1