Node-red crashs after activating example flow

[gaudes]

Hi,

I've installed node-red-contrib-cec as described. After importing the example flow and pressing "deploy" Node Red crashs with the following output:

3 Jan 23:05:19 - [red] Uncaught Exception:
3 Jan 23:05:19 - TypeError: Cannot convert undefined or null to object
at Function.keys ()
at CECMonitor. (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:458:16)
at CECMonitor. (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:202:14)
nodered.service: Main process exited, code=exited, status=1/FAILURE
nodered.service: Unit entered failed state.
nodered.service: Failed with result 'exit-code'.

Any ideas ?

The basic command echo "scan" | cec-client RPI -s -d 1 is working on my Raspberry.

Thanks and regards,

Ralf

[damoclark]

Hey Ralph,

Sorry to hear its not playing nice with your setup.

Here is something to try to help diagnose the issue.

The fork of cec-monitor I created includes a node.js command line tool. You can run it like so:

$ cd ~/.node-red/node_modules/@damoclark/cec-monitor/bin
$ node cli.js

The output from mine looks like so:

CEC-MON> {"type":"TRAFFIC","number":"433","flow":"OUT","source":14,"target":0,"opcode":140,"args":[],"event":"GIVE_DEVICE_VENDOR_ID","data":{}}
CEC-MON> {"type":"TRAFFIC","number":"626","flow":"IN","source":0,"target":15,"opcode":135,"args":[8,0,70],"event":"DEVICE_VENDOR_ID","data":{"val":524358,"str":"SONY"}}
CEC-MON> {"type":"TRAFFIC","number":"1514","flow":"OUT","source":4,"target":15,"opcode":132,"args":[64,0,4],"event":"REPORT_PHYSICAL_ADDRESS","data":{"val":16384,"str":"4.0.0.0"}}
CEC-MON> {"type":"TRAFFIC","number":"1677","flow":"OUT","source":4,"target":0,"opcode":71,"args":[99,101,99,45,109,111,110,45,99,108,105],"event":"SET_OSD_NAME","data":{"val":"cec-mon-cli","str":"cec-mon-cli"}}
CEC-MON> {"type":"TRAFFIC","number":"2008","flow":"OUT","source":4,"target":0,"opcode":143,"args":[],"event":"GIVE_DEVICE_POWER_STATUS","data":{}}
CEC-MON> My address:
logical addresses: 4
  primary logical: 4
         physical: 4.0.0.0
 -- READY -- 
CEC-MON> {"type":"TRAFFIC","number":"2430","flow":"IN","source":0,"target":4,"opcode":144,"args":[1],"event":"REPORT_POWER_STATUS","data":{"val":1,"str":"STANDBY"}}
CEC-MON> 

If you get this far, at the CEC-MON> prompt, type:

CEC-MON> scan

See if you receive any output from that.

If you press TAB, you will get a list of commands available to this utility. There is also tab completion for multiple parameter commands. Try typing tx and then press TAB. It should be a bit easier to use than cec-client.

Try some of the commands as part of the example flow I created. Do they work?

If this works, then the problem may be with the node-red part, rather than the underlying cec-monitor module. See how you go and report back.

Damo.

[gaudes]

Hello Damo,

thanks for the very fast answer. I've just tried it. Same error, here is the output:

CEC-MON> {"type":"TRAFFIC","number":"156","flow":"OUT","source":14,"target":0,"opcode":140,"args":[],"event":"GIVE_DEVICE_VENDOR_ID","data":{}}
CEC-MON> {"type":"TRAFFIC","number":"361","flow":"IN","source":0,"target":15,"opcode":135,"args":[0,0,240],"event":"DEVICE_VENDOR_ID","data":{"val":240,"str":"SAMSUNG"}}
CEC-MON> {"type":"TRAFFIC","number":"1263","flow":"OUT","source":11,"target":15,"opcode":132,"args":[64,0,4],"event":"REPORT_PHYSICAL_ADDRESS","data":{"val":16384,"str":"4.0.0.0"}}
CEC-MON> TypeError: Cannot convert undefined or null to object
at Function.keys ()
at CECMonitor. (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:458:16)
at CECMonitor. (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:202:14)
at wrappedMapper (/home/pi/.node-red/node_modules/map-stream/index.js:84:19)
at Stream.stream.write (/home/pi/.node-red/node_modules/map-stream/index.js:96:21)
at Stream.ondata (internal/streams/legacy.js:16:26)
at emitOne (events.js:116:13)
at Stream.emit (events.js:211:7)
at drain (/home/pi/.node-red/node_modules/through/index.js:36:16)
at Stream.stream.queue.stream.push (/home/pi/.node-red/node_modules/through/index.js:45:5)
cec-client exit

Thanks and regards, Ralf

[damoclark]

Hey Ralf,

Sorry, busy work period.

Could you provide some details in terms of your device/software.

• Raspberry Pi Model etc
• OS & Version
• Node.js version

The following commands will help if you aren't too familiar with Linux:

uname -a
node --version
npm --version

Damo.

[gaudes]

Hey Damo,

sorry, same here :-)

Here the versions output:

Linux raspberrypi 4.9.59-v7+ #1047 SMP Sun Oct 29 12:19:23 GMT 2017 armv7l GNU/Linux

node: v6.12.3
npm: 3.10.10

Thx & Regards, Ralf

[damoclark]

Hey Ralf. Okay, so I suspect the problem is with your version of npm. Version 3 does not support scoped packages. In the past, the error messages for this issue have been different, so there may be other issues compounding the problem. But as a starting point, I'd suggest updating to the latest npm. $ sudo npm install -g npm That should bring you up to around v5.6 ish. Then attempt the installation steps once again and see how you go. Damo.

…

On 29 January 2018 at 06:26, gaudes ***@***.***> wrote: Hey Damo, sorry, same here :-) Here the versions output: Linux raspberrypi 4.9.59-v7+ #1047 SMP Sun Oct 29 12:19:23 GMT 2017 armv7l GNU/Linux node: v6.12.3 npm: 3.10.10 Thx & Regards, Ralf — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#3 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAQypnBSZPvogEZJfRX4yM-PBVYUlRYhks5tPNfYgaJpZM4RSUsc> .

[gaudes]

Hey Damo,

I've upgraded npm to 5.6.0 now.

I've done uninstall and install, still the same problem here.

Thx & Regards, Ralf

[almadsen]

I got the same problem as the one above:

$ cd ~/.node-red/node_modules/@damoclark/cec-monitor/bin
$ node cli.js

gives:

CEC-MON> {"type":"TRAFFIC","number":"164","flow":"OUT","source":14,"target":0,"opcode":140,"args":[],"event":"GIVE_DEVICE_VENDOR_ID","data":{}}
CEC-MON> {"type":"TRAFFIC","number":"364","flow":"IN","source":0,"target":15,"opcode":135,"args":[0,0,240],"event":"DEVICE_VENDOR_ID","data":{"val":240,"str":"SAMSUNG"}}
CEC-MON> {"type":"TRAFFIC","number":"1266","flow":"OUT","source":11,"target":15,"opcode":132,"args":[16,0,4],"event":"REPORT_PHYSICAL_ADDRESS","data":{"val":4096,"str":"1.0.0.0"}}
CEC-MON> TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at CECMonitor.<anonymous> (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:458:16)
    at CECMonitor.<anonymous> (/home/pi/.node-red/node_modules/@damoclark/cec-monitor/lib/cec-monitor.js:202:14)
    at wrappedMapper (/home/pi/.node-red/node_modules/map-stream/index.js:84:19)
    at Stream.stream.write (/home/pi/.node-red/node_modules/map-stream/index.js:96:21)
    at Stream.ondata (internal/streams/legacy.js:16:26)
    at Stream.emit (events.js:160:13)
    at drain (/home/pi/.node-red/node_modules/through/index.js:36:16)
    at Stream.stream.queue.stream.push (/home/pi/.node-red/node_modules/through/index.js:45:5)
    at emit (/home/pi/.node-red/node_modules/split/index.js:36:14)
cec-client exit

My hardware & software profile:

uname -a : Linux candy 4.14.18-v7+ #1093 SMP Fri Feb 9 15:33:07 GMT 2018 armv7l GNU/Linux
node -v : v9.5.0
npm -v : 5.7.1

Any ideas on what's making it fail?

Regards -
@almadsen

[damoclark]

Finally getting back to this error.

So I am unable to reproduce this error on my set up. But I think there error may be caused by an uninitialised variable in cec-monitor library. I've attempted to fix this with the latest commit to cec-monitor.

Try performing an npm update within your /home/pi/.node-red directory and give it another whirl.

You want to have version 1.0.10-release.5 of cec-monitor installed from npmjs.org.

Let me know how it goes.

Damo.