Exception thrown !

[pcouderc12]

ous@pcouderc:~/projets/bose/Bose-Soundtouch-Alt-Interface$ node server.js
internal/modules/cjs/loader.js:583
throw err;
^

Error: Cannot find module 'express'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
at Function.Module._load (internal/modules/cjs/loader.js:507:25)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (internal/modules/cjs/helpers.js:22:18)
at Object. (/home/nous/projets/bose/Bose-Soundtouch-Alt-Interface/server.js:2:17)
at Module._compile (internal/modules/cjs/loader.js:689:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
at Module.load (internal/modules/cjs/loader.js:599:32)
at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
at Function.Module._load (internal/modules/cjs/loader.js:530:3)

Please note that I have installed node.js and npm with apt install on debian buster.
Thanks for help
PC

[kdw2060]

did you execute the 'npm install' command? Sounds like you might have missed that step.

[pcouderc12]

No ! My mistake. I thought that "install" was done by "apt install". Thank ou it is better now !

[pcouderc12]

now I get :
nous@pcouderc:~/projets/bose/Bose-Soundtouch-Alt-Interface$ node server.js
/home/nous/projets/bose/Bose-Soundtouch-Alt-Interface/server.js:48
let ethernet = os.networkInterfaces().Ethernet.length;
^

TypeError: Cannot read property 'length' of undefined
at Object. (/home/nous/projets/bose/Bose-Soundtouch-Alt-Interface/server.js:48:49)
at Module._compile (internal/modules/cjs/loader.js:689:30)
...

[pcouderc12]

node.js release is 10.15.2 (!!!)

[kdw2060]

I'm figuring that code bit that autodiscovers the ip adress out as I go too. Can't tell why it doesn't work on your device without access to it.

If you know the ip-address of the device you're running my app on, then comment out lines 40-50 in server.js and change line 39 into let deviceIP = 'your ip'

[pcouderc12]

Thank you, I do not know node.js but I try to debug it...

[pcouderc12]

Fine, it works not so bad...
1- I succes to get dinner ready. It is fine in these times of coronavirus : we can eat at least instead of going out...
2- But I do not success to change the volume.. It seems to change but dinner's volume does not change
3- I cannot get any station playing : I get a message :
error: StatusCodeError: 500 - "<errors deviceID="304511AD6755"><error value="1005" name="UNKNOWN_SOURCE_ERROR" severity="Unknown">1005"
4- For deviceIP discovery, I am on linux with no eth0, only lo an wlp1s0 (wifi). I suggest a loop on all interfaces, and keep, the first starting with "e" or "w" and 127.0.0.1 if none. I do not know node.js so I cannot suggest a patch.
Thank you very much for this fine app.
pierre at couderc.eu

[pcouderc12]

Mmm, I do no t think I wanted to close it...