title: Unable to run "npm start" shows error. how to resolve?
body: <p>Getting error while running comment "npm start" in windows 10. </p>
  
  <p><a href="https://i.stack.imgur.com/Ejv0p.png" rel="nofollow noreferrer">showing error</a></p>
  
  <p>Package.json</p>
  
  <p><a href="https://i.stack.imgur.com/0vrGR.png" rel="nofollow noreferrer">Packages.json</a></p>
  
  <pre><code>Log
  </code></pre>
  
  <ul>
  <li>0 info it worked if it ends with ok</li>
  <li>1 verbose cli [ 'C:\Program Files\nodejs\node.exe',</li>
  <li>1 verbose cli   'C:\Users\vkarutha\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js',</li>
  <li>1 verbose cli   'start' ]</li>
  <li>2 info using npm@4.2.0</li>
  <li>3 info using node@v6.9.3</li>
  <li>4 verbose run-script [ 'prestart', 'start', 'poststart' ]</li>
  <li>5 info lifecycle hello-world@0.1.0~prestart: hello-world@0.1.0</li>
  <li>6 silly lifecycle hello-world@0.1.0~prestart: no script for prestart, continuing</li>
  <li>7 info lifecycle hello-world@0.1.0~start: hello-world@0.1.0</li>
  <li>8 verbose lifecycle hello-world@0.1.0~start: unsafe-perm in lifecycle true</li>
  <li>9 verbose lifecycle hello-world@0.1.0~start: PATH: C:\Users\vkarutha\AppData\Roaming\npm\node_modules\npm\bin\node-gyp-bin;C:\Users\vkarutha\Documents\React\hello-world\node_modules.bin;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\WebEx\Productivity Tools;C:\Program Files (x86)\Cisco\OSD-ShellApplications;C:\Program Files\Java\jdk1.8.0_101\bin;C:\Cisco\software\apache-maven-3.3.9\bin;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Program Files\TortoiseSVN\bin;C:\Program Files\nodejs\bin;C:\Program Files (x86)\Sennheiser\SoftphoneSDK\;C:\Program Files (x86)\ssh communications security\ssh Secure Shell;C:\Users\vkarutha\AppData\Roaming\npm;C:\Program Files (x86)\Microsoft VS Code\bin;C:\Program Files\nodejs\bin</li>
  <li>10 verbose lifecycle hello-world@0.1.0~start: CWD: C:\Users\vkarutha\Documents\React\hello-world</li>
  <li>11 silly lifecycle hello-world@0.1.0~start: Args: [ '/d /s /c', 'webpack-dev-server --hot' ]</li>
  <li>12 silly lifecycle hello-world@0.1.0~start: Returned: code: 4294967295  signal: null</li>
  <li>13 info lifecycle hello-world@0.1.0~start: Failed to exec start script</li>
  <li>14 verbose stack Error: hello-world@0.1.0 start: <code>webpack-dev-server --hot</code></li>
  <li>14 verbose stack Exit status 4294967295</li>
  <li>14 verbose stack     at EventEmitter. (C:\Users\vkarutha\AppData\Roaming\npm\node_modules\npm\lib\utils\lifecycle.js:279:16)</li>
  <li>14 verbose stack     at emitTwo (events.js:106:13)</li>
  <li>14 verbose stack     at EventEmitter.emit (events.js:191:7)</li>
  <li>14 verbose stack     at ChildProcess. (C:\Users\vkarutha\AppData\Roaming\npm\node_modules\npm\lib\utils\spawn.js:40:14)</li>
  <li>14 verbose stack     at emitTwo (events.js:106:13)</li>
  <li>14 verbose stack     at ChildProcess.emit (events.js:191:7)</li>
  <li>14 verbose stack     at maybeClose (internal/child_process.js:877:16)</li>
  <li>14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)</li>
  <li>15 verbose pkgid hello-world@0.1.0</li>
  <li>16 verbose cwd C:\Users\vkarutha\Documents\React\hello-world</li>
  <li>17 error Windows_NT 10.0.10586</li>
  <li>18 error argv "C:\Program Files\nodejs\node.exe" "C:\Users\vkarutha\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js" "start"</li>
  <li>19 error node v6.9.3</li>
  <li>20 error npm  v4.2.0</li>
  <li>21 error code ELIFECYCLE</li>
  <li>22 error errno 4294967295</li>
  <li>23 error hello-world@0.1.0 start: <code>webpack-dev-server --hot</code></li>
  <li>23 error Exit status 4294967295</li>
  <li>24 error Failed at the hello-world@0.1.0 start script 'webpack-dev-server --hot'.</li>
  <li>24 error Make sure you have the latest version of node.js and npm installed.</li>
  <li>24 error If you do, this is most likely a problem with the hello-world package,</li>
  <li>24 error not with npm itself.</li>
  <li>24 error Tell the author that this fails on your system:</li>
  <li>24 error     webpack-dev-server --hot</li>
  <li>24 error You can get information on how to open an issue for this project with:</li>
  <li>24 error     npm bugs hello-world</li>
  <li>24 error Or if that isn't available, you can get their info via:</li>
  <li>24 error     npm owner ls hello-world</li>
  <li>24 error There is likely additional logging output above.</li>
  <li>25 verbose exit [ 4294967295, true ]</li>
  </ul>
  
  <p>webpack.config.js</p>
  
  <pre><code>var config = {
     entry: './main.js',
  
     output: {
        path:'./',
        filename: 'index.js',
     },
  
     devServer: {
        inline: true,
        port: 8080
     },
  
     module: {
        loaders: [
           {
              test: /\.jsx?$/,
              exclude: /node_modules/,
              loader: 'babel',
  
              query: {
                 presets: ['es2015', 'react']
              }
           }
        ]
     }
  }
  </code></pre>