title: Error occured when executing command: npm run serve
body: <p>I have tried all the options changes my version typescript from "2.4.2" to "2.4.1"
  Also I have separately executed "npm run serve"and "npm run build:watch" but it does not works. I have set the environment vairable but is does not work at all.
  please help to resolve this.</p>
  
  <p>while running cmd npm start following errors comes:</p>
  
  <p>Error occured when executing command: npm run serve</p>
  
  <p>Error: spawn cmd.exe ENOENT</p>
  
  <pre><code> at exports._errnoException (util.js:1018:11)
   at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
   at onErrorNT (internal/child_process.js:367:16)
   at _combinedTickCallback (internal/process/next_tick.js:80:11)
   at process._tickCallback (internal/process/next_tick.js:104:9)
   at Module.runMain (module.js:606:11)
   at run (bootstrap_node.js:389:7)
   at startup (bootstrap_node.js:149:9)
   at bootstrap_node.js:504:3
  </code></pre>
  
  <p>Error occured when executing command:
   npm run serve</p>
  
  <pre><code>Error: spawn cmd.exe ENOENT
  
       at exports._errnoException (util.js:1018:11)`enter code here`
       at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
       at onErrorNT (internal/child_process.js:367:16)
       at _combinedTickCallback (internal/process/next_tick.js:80:11)
       at process._tickCallback (internal/process/next_tick.js:104:9)
       at Module.runMain (module.js:606:11)
       at run (bootstrap_node.js:389:7)
       at startup (bootstrap_node.js:149:9)
       at bootstrap_node.js:504:3
  
  [1] npm run serve exited with code -4058
  
  npm ERR! code ELIFECYCLE
  
  npm ERR! errno 1
  
  npm ERR! angular-quickstart@1.0.0 start: `concurrently "npm run build:watch"
   "npm run serve"`
  
  
  npm ERR! Exit status 1
  
  npm ERR!
  
  npm ERR! Failed at the angular-quickstart@1.0.0 start script.
  
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  
  
  npm ERR! A complete log of this run can be found in:
  
  npm ERR!     C:\Users\Nitesh Sharma\AppData\Roaming\npm-cache\_logs\2017-08-04T05_49_43_912Z-debug.log
  </code></pre>
  
  <p>Here is my package.json file:</p>
  
  <pre><code>{
    "name": "angular-quickstart",
    "version": "1.0.0",
    "description": "QuickStart package.json from the documentation, supplemented 
  with testing support",
    "scripts": {
      "build": "tsc -p src/",
      "build:watch": "tsc -p src/ -w",
  "build:e2e": "tsc -p e2e/",
      "serve": "lite-server -c=bs-config.json",
      "serve:e2e": "lite-server -c=bs-config.e2e.json",
      "prestart": "npm run build",
      "start": "concurrently \"npm run build:watch\" \"npm run serve\"",
      "pree2e": "npm run build:e2e",
      "e2e": "concurrently \"npm run serve:e2e\" \"npm run protractor\" --kill-others --success first",
      "preprotractor": "webdriver-manager update",
      "protractor": "protractor protractor.config.js",
      "pretest": "npm run build",
      "test": "concurrently \"npm run build:watch\" \"karma start karma.conf.js\"",
      "pretest:once": "npm run build",
      "test:once": "karma start karma.conf.js --single-run",
      "lint": "tslint ./src/**/*.ts -t verbose"
    },
    "keywords": [],
    "author": "",
    "license": "MIT",
    "dependencies": {
      "@angular/common": "~4.0.0",
      "@angular/compiler": "~4.0.0",
      "@angular/core": "~4.0.0",
      "@angular/forms": "~4.0.0",
      "@angular/http": "~4.0.0",
      "@angular/platform-browser": "~4.0.0",
      "@angular/platform-browser-dynamic": "~4.0.0",
      "@angular/router": "~4.0.0",
      "angular-in-memory-web-api": "~0.3.0",
      "systemjs": "0.19.40",
      "core-js": "^2.4.1",
      "rxjs": "^5.4.2",
      "zone.js": "^0.8.4"
    },
    "devDependencies": {
      "@types/jasmine": "2.5.36",
      "@types/node": "^6.0.46",
      "canonical-path": "0.0.2",
      "concurrently": "^3.2.0",
      "jasmine-core": "~2.4.1",
      "karma": "^1.3.0",
      "karma-chrome-launcher": "^2.0.0",
      "karma-cli": "^1.0.1",
      "karma-jasmine": "^1.0.2",
      "karma-jasmine-html-reporter": "^0.2.2",
      "lite-server": "^2.2.2",
      "lodash": "^4.16.4",
      "protractor": "~4.0.14",
      "rimraf": "^2.5.4",
      "tslint": "^3.15.1",
      "typescript": "^2.4.2"
    },
    "repository": {}
  }
  </code></pre>
  
  <p>My debug log is :</p>
  
  <pre><code>    0 info it worked if it ends with ok
  1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
  1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
      1 verbose cli   'start' ]
  
      2 info using npm@3.10.10
  3 info using node@v6.11.1
  4 verbose run-script [ 'prestart', 'start', 'poststart' ]
  5 info lifecycle angular-quickstart@1.0.0~prestart: angular-quickstart@1.0.0
  6 verbose lifecycle angular-quickstart@1.0.0~prestart: unsafe-perm in lifecycle true
  7 verbose lifecycle angular-quickstart@1.0.0~prestart: PATH: C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin;C:\Users\Nitesh Sharma\Downloads\Desktop\Angular_2\shared_code\quickstart-master\node_modules\.bin;C:\Program Files\Java\jdk1.8.0_102\bin;C:\Program Files\nodejs\;C:\Program Files (x86)\Microsoft VS Code\bin;C:\Users\Nitesh Sharma\AppData\Roaming\npm
  
      8 verbose lifecycle angular-quickstart@1.0.0~prestart: CWD: C:\Users\Nitesh Sharma\Downloads\Desktop\Angular_2\shared_code\quickstart-master
  
      9 silly lifecycle angular-quickstart@1.0.0~prestart: Args: [ '/d /s /c', 'npm run build' ]
  
      10 silly lifecycle angular-quickstart@1.0.0~prestart: Returned: code: 0  signal: null
  
      11 info lifecycle angular-quickstart@1.0.0~start: angular-quickstart@1.0.0
  
      12 verbose lifecycle angular-quickstart@1.0.0~start: unsafe-perm in lifecycle true
  
      13 verbose lifecycle angular-quickstart@1.0.0~start: PATH: C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin;C:\Users\Nitesh Sharma\Downloads\Desktop\Angular_2\shared_code\quickstart-master\node_modules\.bin;C:\Program Files\Java\jdk1.8.0_102\bin;C:\Program Files\nodejs\;C:\Program Files (x86)\Microsoft VS Code\bin;C:\Users\Nitesh Sharma\AppData\Roaming\npm
  
      14 verbose lifecycle angular-quickstart@1.0.0~start: CWD: C:\Users\Nitesh Sharma\Downloads\Desktop\Angular_2\shared_code\quickstart-master
  
      15 silly lifecycle angular-quickstart@1.0.0~start: Args: [ '/d /s /c',
      15 silly lifecycle   'concurrently "npm run build:watch" "npm run serve"' ]
  16 silly lifecycle angular-quickstart@1.0.0~start: Returned: code: 1  signal: null
  17 info lifecycle angular-quickstart@1.0.0~start: Failed to exec start script
  18 verbose stack Error: angular-quickstart@1.0.0 start: `concurrently "npm run build:watch" "npm run serve"`
  18 verbose stack Exit status 1
  18 verbose stack     at EventEmitter.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\lib\utils\lifecycle.js:255:16)
  18 verbose stack     at emitTwo (events.js:106:13)
  18 verbose stack     at EventEmitter.emit (events.js:191:7)
  18 verbose stack     at ChildProcess.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\lib\utils\spawn.js:40:14)
  18 verbose stack     at emitTwo (events.js:106:13)
  18 verbose stack     at ChildProcess.emit (events.js:191:7)
  18 verbose stack     at maybeClose (internal/child_process.js:891:16)
  18 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
  19 verbose pkgid angular-quickstart@1.0.0
  20 verbose cwd C:\Users\Nitesh Sharma\Downloads\Desktop\Angular_2\shared_code\quickstart-master
  21 error Windows_NT 6.1.7601
  22 error argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
  23 error node v6.11.1
  24 error npm  v3.10.10
  25 error code ELIFECYCLE
  26 error angular-quickstart@1.0.0 start: `concurrently "npm run build:watch" "npm run serve"`
  
      26 error Exit status 1
  27 error Failed at the angular-quickstart@1.0.0 start script 'concurrently "npm run build:watch" "npm run serve"'.
  
      27 error Make sure you have the latest version of node.js and npm installed.
  27 error If you do, this is most likely a problem with the angular-quickstart package,
  27 error not with npm itself.
  
      27 error Tell the author that this fails on your system:
  27 error     concurrently "npm run build:watch" "npm run serve"
  
      27 error You can get information on how to open an issue for this project with:
  27 error     npm bugs angular-quickstart
  27 error Or if that isn't available, you can get their info via:
  27 error     npm owner ls angular-quickstart
  27 error There is likely additional logging output above.
  28 verbose exit [ 1, true ]
  </code></pre>