unable to npm start

[Pratik Naik @ India]

npm ERR!
npm ERR! Failed at the angular2-starter@1.0.1 start script 'gulp serve-dev'.
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 angular2-starter package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! gulp serve-dev
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs angular2-starter
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls angular2-starter
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /media/pratik/DISK1/Work/masaga/POS/APP/posappv5/angular2-starter/npm-debug.log

==========================npm-debug.log ====================

0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'start' ]
2 info using npm@3.10.8
3 info using node@v7.0.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle angular2-starter@1.0.1prestart: angular2-starter@1.0.1
6 silly lifecycle angular2-starter@1.0.1prestart: no script for prestart, continuing
7 info lifecycle angular2-starter@1.0.1start: angular2-starter@1.0.1
8 verbose lifecycle angular2-starter@1.0.1start: unsafe-perm in lifecycle true
9 verbose lifecycle angular2-starter@1.0.1start: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/media/pratik/DISK1/Work/masaga/POS/APP/posappv5/angular2-starter/node_modules/.bin:/home/pratik/bin:/home/pratik/.local/bin:/home/pratik/bin:/home/pratik/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin
10 verbose lifecycle angular2-starter@1.0.1start: CWD: /media/pratik/DISK1/Work/masaga/POS/APP/posappv5/angular2-starter
11 silly lifecycle angular2-starter@1.0.1start: Args: [ '-c', 'gulp serve-dev' ]
12 silly lifecycle angular2-starter@1.0.1start: Returned: code: 135 signal: null
13 info lifecycle angular2-starter@1.0.1~start: Failed to exec start script
14 verbose stack Error: angular2-starter@1.0.1 start: gulp serve-dev
14 verbose stack Exit status 135
14 verbose stack at EventEmitter. (/usr/local/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. (/usr/local/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:877:16)
14 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
15 verbose pkgid angular2-starter@1.0.1
16 verbose cwd /media/pratik/DISK1/Work/masaga/POS/APP/posappv5/angular2-starter
17 error Linux 4.4.0-45-generic
18 error argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
19 error node v7.0.0
20 error npm v3.10.8
21 error code ELIFECYCLE
22 error angular2-starter@1.0.1 start: gulp serve-dev
22 error Exit status 135
23 error Failed at the angular2-starter@1.0.1 start script 'gulp serve-dev'.
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 angular2-starter package,
23 error not with npm itself.
23 error Tell the author that this fails on your system:
23 error gulp serve-dev
23 error You can get information on how to open an issue for this project with:
23 error npm bugs angular2-starter
23 error Or if that isn't available, you can get their info via:
23 error npm owner ls angular2-starter
23 error There is likely additional logging output above.
24 verbose exit [ 1, true ]