title: Webpack dev server for vue-cli: Error spawn EACCES
body: <p>My environment:</p>
  
  <ul>
  <li>Centos7 via VirtualBox (installed on Windows7)</li>
  <li>Node version: 6.10.3</li>
  <li>Npm version : 3.10.10</li>
  <li>I'm behind a corporate proxy</li>
  </ul>
  
  <p>I initialized a new project "vuetest" with vue-cli, and now I want to run a webpack server.
  I use the following command:</p>
  
  <pre><code>npm run dev
  </code></pre>
  
  <p>This command is equivalent to "webpack-dev-server --open --hot", here is my "package.json" file to check:</p>
  
  <pre><code>{
    "name": "vuetest",
    "description": "A Vue.js project",
    "version": "1.0.0",
    "author": "",
    "private": true,
    "scripts": {
      "dev": "cross-env NODE_ENV=development webpack-dev-server --open --hot",
      "build": "cross-env NODE_ENV=production webpack --progress --hide-modules"
    },
    "dependencies": {
      "vue": "^2.3.3"
    },
    "devDependencies": {
      "babel-core": "^6.0.0",
      "babel-loader": "^6.0.0",
      "babel-preset-env": "^1.5.1",
      "cross-env": "^3.2.4",
      "css-loader": "^0.25.0",
      "file-loader": "^0.9.0",
      "vue-loader": "^12.1.0",
      "vue-template-compiler": "^2.3.3",
      "webpack": "^2.6.1",
      "webpack-dev-server": "^2.4.5"
    }
  }
  </code></pre>
  
  <p>But I get the following error:</p>
  
  <pre><code>&gt; vuetest@1.0.0 dev /var/www/html/vuetest
  &gt; cross-env NODE_ENV=development webpack-dev-server --open --hot
  
  Project is running at http://localhost:8080/
  webpack output is served from /dist/
  404s will fallback to /index.html
  internal/child_process.js:319
      throw errnoException(err, 'spawn');
      ^
  
  Error: spawn EACCES
      at exports._errnoException (util.js:1018:11)
      at ChildProcess.spawn (internal/child_process.js:319:11)
      at Object.exports.spawn (child_process.js:378:9)
      at module.exports (/var/www/html/vuetest/node_modules/opn/index.js:75:24)
      at reportReadiness (/var/www/html/vuetest/node_modules/webpack-dev-server/bin/webpack-dev-server.js:424:3)
      at Server.&lt;anonymous&gt; (/var/www/html/vuetest/node_modules/webpack-dev-server/bin/webpack-dev-server.js:404:4)
      at Server.g (events.js:292:16)
      at emitNone (events.js:86:13)
      at Server.emit (events.js:185:7)
      at emitListeningNT (net.js:1284:10)
  
  npm ERR! Linux 3.10.0-514.el7.x86_64
  npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "run" "dev"
  npm ERR! node v6.10.3
  npm ERR! npm  v3.10.10
  npm ERR! code ELIFECYCLE
  npm ERR! vuetest@1.0.0 dev: `cross-env NODE_ENV=development webpack-dev-server --open --hot`
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the vuetest@1.0.0 dev script 'cross-env NODE_ENV=development webpack-dev-server --open --hot'.
  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 vuetest package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     cross-env NODE_ENV=development webpack-dev-server --open --hot
  npm ERR! You can get information on how to open an issue for this project with:
  npm ERR!     npm bugs vuetest
  npm ERR! Or if that isn't available, you can get their info via:
  npm ERR!     npm owner ls vuetest
  npm ERR! There is likely additional logging output above.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     /var/www/html/vuetest/npm-debug.log
  </code></pre>
  
  <p>Here's the contents of the "npm-debug.log" file:</p>
  
  <pre><code>0 info it worked if it ends with ok
  1 verbose cli [ '/usr/bin/node', '/usr/bin/npm', 'run', 'dev' ]
  2 info using npm@3.10.10
  3 info using node@v6.10.3
  4 verbose run-script [ 'predev', 'dev', 'postdev' ]
  5 info lifecycle vuetest@1.0.0~predev: vuetest@1.0.0
  6 silly lifecycle vuetest@1.0.0~predev: no script for predev, continuing
  7 info lifecycle vuetest@1.0.0~dev: vuetest@1.0.0
  8 verbose lifecycle vuetest@1.0.0~dev: unsafe-perm in lifecycle true
  9 verbose lifecycle vuetest@1.0.0~dev: PATH: /usr/lib/node_modules/npm/bin/node-gyp-bin:/var/www/html/vuetest/node_modules/.bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/bdupre/.local/bin:/home/bdupre/bin
  10 verbose lifecycle vuetest@1.0.0~dev: CWD: /var/www/html/vuetest
  11 silly lifecycle vuetest@1.0.0~dev: Args: [ '-c',
  11 silly lifecycle   'cross-env NODE_ENV=development webpack-dev-server --open --hot' ]
  12 silly lifecycle vuetest@1.0.0~dev: Returned: code: 1  signal: null
  13 info lifecycle vuetest@1.0.0~dev: Failed to exec dev script
  14 verbose stack Error: vuetest@1.0.0 dev: `cross-env NODE_ENV=development webpack-dev-server --open --hot`
  14 verbose stack Exit status 1
  14 verbose stack     at EventEmitter.&lt;anonymous&gt; (/usr/lib/node_modules/npm/lib/utils/lifecycle.js:255:16)
  14 verbose stack     at emitTwo (events.js:106:13)
  14 verbose stack     at EventEmitter.emit (events.js:191:7)
  14 verbose stack     at ChildProcess.&lt;anonymous&gt; (/usr/lib/node_modules/npm/lib/utils/spawn.js:40:14)
  14 verbose stack     at emitTwo (events.js:106:13)
  14 verbose stack     at ChildProcess.emit (events.js:191:7)
  14 verbose stack     at maybeClose (internal/child_process.js:886:16)
  14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
  15 verbose pkgid vuetest@1.0.0
  16 verbose cwd /var/www/html/vuetest
  17 error Linux 3.10.0-514.el7.x86_64
  18 error argv "/usr/bin/node" "/usr/bin/npm" "run" "dev"
  19 error node v6.10.3
  20 error npm  v3.10.10
  21 error code ELIFECYCLE
  22 error vuetest@1.0.0 dev: `cross-env NODE_ENV=development webpack-dev-server --open --hot`
  22 error Exit status 1
  23 error Failed at the vuetest@1.0.0 dev script 'cross-env NODE_ENV=development webpack-dev-server --open --hot'.
  23 error Make sure you have the latest version of node.js and npm installed.
  23 error If you do, this is most likely a problem with the vuetest package,
  23 error not with npm itself.
  23 error Tell the author that this fails on your system:
  23 error     cross-env NODE_ENV=development webpack-dev-server --open --hot
  23 error You can get information on how to open an issue for this project with:
  23 error     npm bugs vuetest
  23 error Or if that isn't available, you can get their info via:
  23 error     npm owner ls vuetest
  23 error There is likely additional logging output above.
  24 verbose exit [ 1, true ]
  </code></pre>
  
  <p>Does anyone know how to fix it please?</p>