face detection app generate error on OS when use "matrix start" from CLI

[arllllll10]

I follow the instruction online to run the simple face detection application:
https://www.youtube.com/watch?v=8jkWwum8O8Q
and I also take a look at post #80.
right now my config.yaml is

services:
Buildindetection:
engine: detection
type: face

and the app.js is simply
matrix.service('face').start.then(function(data){ console.log(data); });

but I still get the error message from matrix os:

==== Application buildindetection started! ====
(buildindetection) Matrix OS Application Library Loading...

(buildindetection) service> undefined

(buildindetection)err invalid service declared. No configuration available for face

Stopping buildindetection
(buildindetection)err /home/pi/matrix-os/apps/buildindetection.matrix/app.js:1
(function (exports, require, module, __filename, __dirname) { matrix.service('face').start.then(function(data){
^

TypeError: Cannot read property 'start' of undefined
at Object. (/home/pi/matrix-os/apps/buildindetection.matrix/app.js:1:85)
at Module._compile (module.js:556:32)
at Object.Module._extensions..js (module.js:565:10)
at Module.load (module.js:473:32)
at tryModuleLoad (module.js:432:12)
at Function.Module._load (module.js:424:3)
at Module.require (module.js:483:17)
at require (internal/module.js:20:19)
at Object. (/home/pi/matrix-os/apps/buildindetection.matrix/index.js:7:1)
at Module._compile (module.js:556:32)

Stopping buildindetection
Uncaught exception: TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9) TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
UNKNOWN ERROR! TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
Unable to clean, exitting...

What's more, I install the malos and malos_eye on my Pi and run the example code successfully, so I've no idea about how to fix this issue, any suggestions?

[gordinh]

Hi @arleneF on matrix.service('face').start.then(function(data){ console.log(data); });, start is a function, so should be start()

[arllllll10]

Thanks for replying. @gordinh
Even I changed start to start(), similar thing happens:
(buildindetection)err invalid service declared. No configuration available for face

Stopping buildindetection
(buildindetection)err /home/pi/matrix-os/apps/buildindetection.matrix/app.js:1
(function (exports, require, module, __filename, __dirname) { matrix.service('face').start().then(function(data){
^

TypeError: Cannot read property 'start' of undefined
at Object. (/home/pi/matrix-os/apps/buildindetection.matrix/app.js:1:85)
at Module._compile (module.js:556:32)
at Object.Module._extensions..js (module.js:565:10)
at Module.load (module.js:473:32)
at tryModuleLoad (module.js:432:12)
at Function.Module._load (module.js:424:3)
at Module.require (module.js:483:17)
at require (internal/module.js:20:19)
at Object. (/home/pi/matrix-os/apps/buildindetection.matrix/index.js:7:1)
at Module._compile (module.js:556:32)

Stopping buildindetection
Uncaught exception: TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9) TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
UNKNOWN ERROR! TypeError: Cannot convert undefined or null to object
at ChildProcess. (/home/pi/matrix-os/lib/service/manager.js:503:21)
at emitNone (events.js:86:13)
at ChildProcess.emit (events.js:185:7)
at finish (internal/child_process.js:711:14)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
Unable to clean, exitting...

[gordinh]

Are you using the latest MOS version? Also show me your app.js and config.yaml

[arllllll10]

I think it is the latest one, I download it four days ago, and also do sudo apt-get update && sudo apt-get upgrade today.
Here's my app.js:

 matrix.service('face').start().then(function(data){
	console.log(data);
});

and config.yaml:

# do not touch this line
configVersion: 2

name: buildindetection
description: follow the online isntruction
keywords: detection
displayName: Buildindetection

services:
	Buildindetection:
		engine: detection
		type: face

[gordinh]

Ok @arleneF i've just tested here and as you can see below there's nothing wrong on it. Please check if you are using 0.14.1 version:

 |\/| |__|  |  |__/ |  \/   [o__o]
 |  | |  |  |  |  \ | _/\_  v0.14.1
==== Application Test- started! ==== 
(Test-) Matrix OS Application Library Loading...

(Test-) service> { engine: 'detection', type: 'face' }

(Test-) matrix.service:: face : detection > face

(Test-) setup service listener
Matrix App Host Ready!

(Test-) APP>SERVICE> { type: 'container-ready', app: 'Test-', pid: 8250 }

[arllllll10]

oh I found my OS version is v0.14.0, so I have to re-install it again? since I did update and upgrade several times and the version keeps the same.

[gordinh]

You can just use git pull to update the repo.