debian@pine64pro:~$ cd /home/debian/Desktop/alexa-avs-sample-app/samples/companionService && npm start

> alexa-voice-service-sample-companion-service@1.0.0 start /home/debian/Desktop/alexa-avs-sample-app/samples/companionService
> node ./bin/www

This node service needs to be running to store token information memory and vend them for the AVS app.

module.js:471
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/debian/Desktop/alexa-avs-sample-app/samples/companionService/app.js:1:77)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

npm ERR! Linux 3.10.102-0-pine64-longsleep
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "start"
npm ERR! node v6.9.2
npm ERR! npm  v3.10.9
npm ERR! code ELIFECYCLE
npm ERR! alexa-voice-service-sample-companion-service@1.0.0 start: `node ./bin/www`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the alexa-voice-service-sample-companion-service@1.0.0 start script 'node ./bin/www'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the alexa-voice-service-sample-companion-service package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node ./bin/www
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs alexa-voice-service-sample-companion-service
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls alexa-voice-service-sample-companion-service
npm ERR! There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! Please include the following file with any support request:
npm ERR!     /home/debian/Desktop/alexa-avs-sample-app/samples/companionService/npm-debug.log
debian@pine64pro:~/Desktop/alexa-avs-sample-app/samples/companionService$ cd
debian@pine64pro:~$ cd ~/Desktop/alexa-avs-sample-app/samples
debian@pine64pro:~/Desktop/alexa-avs-sample-app/samples$ cd companionService && npm start

> alexa-voice-service-sample-companion-service@1.0.0 start /home/debian/Desktop/alexa-avs-sample-app/samples/companionService
> node ./bin/www

This node service needs to be running to store token information memory and vend them for the AVS app.

module.js:471
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/debian/Desktop/alexa-avs-sample-app/samples/companionService/app.js:1:77)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

npm ERR! Linux 3.10.102-0-pine64-longsleep
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "start"
npm ERR! node v6.9.2
npm ERR! npm  v3.10.9
npm ERR! code ELIFECYCLE
npm ERR! alexa-voice-service-sample-companion-service@1.0.0 start: `node ./bin/www`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the alexa-voice-service-sample-companion-service@1.0.0 start script 'node ./bin/www'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the alexa-voice-service-sample-companion-service package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node ./bin/www
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs alexa-voice-service-sample-companion-service
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls alexa-voice-service-sample-companion-service
npm ERR! There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! Please include the following file with any support request:
npm ERR!     /home/debian/Desktop/alexa-avs-sample-app/samples/companionService/npm-debug.log
debian@pine64pro:~/Desktop/alexa-avs-sample-app/samples/companionService$ cd
debian@pine64pro:~$ npm --version
3.10.9
debian@pine64pro:~$