Got Error when "npm run build"

[Topperchi]

topperchi@onlinereadbook-test-1:~/next2readbook$ npm run dev

> [email protected] dev /home/topperchi/next2readbook
> next

sh: 1: next: not found

npm ERR! Linux 4.4.0-72-generic
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "dev"
npm ERR! node v0.12.7
npm ERR! npm  v2.11.3
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! [email protected] dev: `next`
npm ERR! spawn ENOENT
npm ERR! 
npm ERR! Failed at the [email protected] dev script 'next'.
npm ERR! This is most likely a problem with the nextofficeweb package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     next
npm ERR! You can get their info via:
npm ERR!     npm owner ls nextofficeweb
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/topperchi/next2readbook/npm-debug.log

[bestlong]

有沒有先跑過 npm install 呢？