cannot use NPM INSTALL command because of rdash-angular2

[kallamrajareddy]

[email protected] start F:\gg\DashBord-2\rdash-angular2
concurrently "npm run tsc:w" "npm run live"

'concurrently' is not recognized as an internal or external command,
operable program or batch file.

npm ERR! Windows_NT 6.1.7600
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs
node_modules\npm\bin\npm-cli.js" "start"
npm ERR! node v4.6.0
npm ERR! npm v2.15.9
npm ERR! code ELIFECYCLE
npm ERR! [email protected] start: concurrently "npm run tsc:w" "npm run live "
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script 'concurrently "npm run
tsc:w" "npm run live" '.
npm ERR! This is most likely a problem with the rdash-angular2 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! concurrently "npm run tsc:w" "npm run live"
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs rdash-angular2
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR! npm owner ls rdash-angular2
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! F:\gg\DashBord-2\rdash-angular2\npm-debug.log

F:\gg\DashBord-2\rdash-angular2>cd src

F:\gg\DashBord-2\rdash-angular2\src>node system.config.js
F:\gg\DashBord-2\rdash-angular2\src\system.config.js:1
(function (exports, require, module, __filename, __dirname) { System.config({
^

ReferenceError: System is not defined
at Object. (F:\gg\DashBord-2\rdash-angular2\src\system.conf
ig.js:1:63)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
at startup (node.js:139:18)
at node.js:974:3