Can't start dev server (0.21.5)

This issue is a:

Bug report
Question / support request

Hi,

I cannot start dev server via npm start, I get the following error, in version 0.21.5:

Failed to compile with 1 error.

 ERROR  in ./demo/src/index.js
Module parse failed: Unexpected token (8:11)
You may need an appropriate loader to handle this file type.
| class Demo extends Component {
|   render() {
|     return <div>
|       <h1>NWB Demo</h1>
|       <Example/>
 @ multi C:/Users/u0078867/AppData/Roaming/npm/node_modules/nwb/polyfills.js (we
bpack)-dev-server/client?/ (webpack)/hot/only-dev-server.js ./demo/src/index.js

Same for older versions.

I am also getting the same error while building and testing. Here and example while building;

C:\Users\u0078867\Desktop\KULeuvenJob\my_node_modules\NWB>npm run build

> NWB@1.0.0 build C:\Users\u0078867\Desktop\KULeuvenJob\my_node_modules\NWB
> nwb build-react-component

V Cleaning module
V Creating ES5 build
V Creating ES6 modules build
V Cleaning demo
× Building demo

Failed to compile with 1 error.

 ERROR  in ./demo/src/index.js
Module parse failed: Unexpected token (8:11)
You may need an appropriate loader to handle this file type.
| class Demo extends Component {
|   render() {
|     return <div>
|       <h1>NWB Demo</h1>
|       <Example/>
 @ multi C:/Users/u0078867/AppData/Roaming/npm/node_modules/nwb/polyfills.js ./d
emo/src/index.js
Error running command: Build failed with errors.
Error: Build failed with errors.
    at C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\lib\webpackBuild.j
s:76:17
    at emitRecords.err (C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\n
ode_modules\webpack\lib\Compiler.js:265:13)
    at Compiler.emitRecords (C:\Users\u0078867\AppData\Roaming\npm\node_modules\
nwb\node_modules\webpack\lib\Compiler.js:371:38)
    at emitAssets.err (C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\no
de_modules\webpack\lib\Compiler.js:258:10)
    at applyPluginsAsyncSeries1.err (C:\Users\u0078867\AppData\Roaming\npm\node_
modules\nwb\node_modules\webpack\lib\Compiler.js:364:12)
    at next (C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\node_modules
\tapable\lib\Tapable.js:218:11)
    at Compiler.compiler.plugin (C:\Users\u0078867\AppData\Roaming\npm\node_modu
les\nwb\node_modules\webpack\lib\performance\SizeLimitsPlugin.js:99:4)
    at Compiler.applyPluginsAsyncSeries1 (C:\Users\u0078867\AppData\Roaming\npm\
node_modules\nwb\node_modules\tapable\lib\Tapable.js:222:13)
    at Compiler.afterEmit (C:\Users\u0078867\AppData\Roaming\npm\node_modules\nw
b\node_modules\webpack\lib\Compiler.js:361:9)
    at require.forEach.err (C:\Users\u0078867\AppData\Roaming\npm\node_modules\n
wb\node_modules\webpack\lib\Compiler.js:350:15)
    at C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\node_modules\async
\dist\async.js:473:16
    at iteratorCallback (C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\
node_modules\async\dist\async.js:1050:13)
    at C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\node_modules\async
\dist\async.js:958:16
    at C:\Users\u0078867\AppData\Roaming\npm\node_modules\nwb\node_modules\grace
ful-fs\graceful-fs.js:43:10
    at FSReqWrap.oncomplete (fs.js:123:15)

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\u0078867\\AppDat
a\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "run" "build"
npm ERR! node v6.9.4
npm ERR! npm  v3.8.9
npm ERR! code ELIFECYCLE
npm ERR! NWB@1.0.0 build: `nwb build-react-component`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the NWB@1.0.0 build script 'nwb build-react-component'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the NWB package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     nwb build-react-component
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs NWB
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls NWB
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\u0078867\Desktop\KULeuvenJob\my_node_modules\NWB\npm-debug
.log

Component seems to get built properly, but whenever it is matter to build the demo or to test, sale problem occurs.

Adding:

  babel: {
    presets: ['es2015', 'stage-0', 'react']
  }

to nwb.config.js does not solve the problem.

Any idea?

Thanks

insin / nwb

Can't start dev server (0.21.5) #448