Gcloud app deploy error response [9]

I tried deploying my app with the cmd:

gcloud app deploy 

and it gave me error [9], but i am unsure why as it runs on the online simulator so I thought everything is good?

heres the error:

ERROR: (gcloud.app.deploy) Error Response: [9]
Application startup error:
> <project-name on api.ai>@0.0.1 start /app
> functions deploy <api.ai function name> --trigger-http

sh: 1: functions: not found

npm ERR! Linux 3.16.0-4-amd64
npm ERR! argv "/nodejs/bin/node" "/nodejs/bin/npm" "start"
npm ERR! node v4.2.6
npm ERR! npm  v2.14.12
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! <project-name on api.ai>@0.0.1 start: `functions deploy 
<api.ai function name> --trigger-http`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the <project-name on api.ai>@0.0.1 start script 'functions 
deploy <api.ai function name> --trigger-http'.
npm ERR! This is most likely a problem with the <api.ai function name> 
package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     functions deploy <api.ai function name> --trigger-http
npm ERR! You can get their info via:
npm ERR!     npm owner ls <project-name on api.ai>
npm ERR! There is likely additional logging output above.

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

How can i fix this?

via Dema