npm run build throws error

[khushboo07]

I am facing below issue on execution of npm run build

C:\Users\khushboo-singh\Downloads\angular2-testing-master>npm build run
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files (x86)\nodejs\node.exe" "C:\Program Files (x8
6)\nodejs\node_modules\npm\bin\npm-cli.js" "build" "run"
npm ERR! node v6.3.0
npm ERR! npm v3.10.3
npm ERR! path C:\Users\khushboo-singh\Downloads\angular2-testing-master\run\pack
age.json
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall open

npm ERR! enoent ENOENT: no such file or directory, open 'C:\Users\khushboo-singh
\Downloads\angular2-testing-master\run\package.json'
npm ERR! enoent ENOENT: no such file or directory, open 'C:\Users\khushboo-singh
\Downloads\angular2-testing-master\run\package.json'
npm ERR! enoent This is most likely not a problem with npm itself
npm ERR! enoent and is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\khushboo-singh\Downloads\angular2-testing-master\npm-debug
.log