missing script build

[cyrusonline]

There is missing script after using this new v3 framework7

> npm run build && cordova run android

npm ERR! missing script: build

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\cyruschan\AppData\Roaming\npm-cache\_logs\2019-01-02T02_01_24_363Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! helloworld@1.0.0 cordova-run-android: `npm run build && cordova run android`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the helloworld@1.0.0 cordova-run-android 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\framework7\AppData\Roaming\npm-cache\_logs\2019-01-02T02_01_24_419Z-debug.log