Error Message Help

Can anyone explain this error message to me? Ive been trying to solve it for days but it still appears.
pi@raspberrypi:~/eyeLock/alexa-avs-sample-app/samples/companionService $ npm start
(node:3700) [DEP0022] DeprecationWarning: os.tmpDir() is deprecated. Use os.tmpdir() instead.

alexa-voice-service-sample-companion-service@1.0.0 start /home/pi/eyeLock/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.

return, stringToFlags(flags), mode);

Error: ENOENT: no such file or directory, open ‘’
at Object.fs.openSync (fs.js:646:18)
at Object.fs.readFileSync (fs.js:551:33)
at Object. (/home/pi/eyeLock/alexa-avs-sample-app/samples/companionService/bin/www:21:13)
at Module._compile (module.js:652:30)
at Object.Module._extensions…js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Function.Module.runMain (module.js:693:10)
at startup (bootstrap_node.js:188:16)

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.
npm ERR! 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 their info via:
npm ERR! npm owner ls alexa-voice-service-sample-companion-service
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 4.14.98-v7+
npm ERR! command “/usr/bin/node” “/usr/bin/npm” “start”
npm ERR! cwd /home/pi/eyeLock/alexa-avs-sample-app/samples/companionService
npm ERR! node -v v8.11.1
npm ERR! npm -v 1.4.21
npm WARN This failure might be due to the use of legacy binary “node”
npm WARN For further explanations, please read

npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/pi/eyeLock/alexa-avs-sample-app/samples/companionService/npm-debug.log
npm ERR! not ok code 0

Not an Arduino error.

pi@raspberrypi:~/eyeLock/alexa-avs-sample-app/samples/companionService $ npm start

You'll have much better chance of success on a RPi forum.

yea I posted it in a RPi forum and no one has answered

Try searching on the error message - I found several postings on various forums - that message seems to be going around