运行npm start时出现以下错误：
pi@raspberrypi:~/alexa-avs-sample-app/samples/companionService $ npm start
alexa-voice-service-sample-companion-service@1.0.0开始/ home / pi / alexa-avs-sample-app / samples / companionService 节点./bin/www
此节点服务需要运行以存储令牌信息内存并将其出售给AVS应用。
/home/pi/alexa-avs-sample-app/samples/companionService/node_modules/express/node_modules/finalhandler/index.js:11
var debug = require('debug')('finalhandler')
^
TypeError: object is not a function
at Object.<anonymous> (/home/pi/alexa-avs-sample-app/samples/companionService/node_modules/express/node_modules/finalhandler/index.js:11:29)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/home/pi/alexa-avs-sample-app/samples/companionService/node_modules/express/lib/application.js:14:20)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
npm ERR! alexa-voice-service-sample-companion-service@1.0.0 start: `node ./bin/www`
npm ERR! Exit status 8
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 4.1.19-v7+
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "start"
npm ERR! cwd /home/pi/alexa-avs-sample-app/samples/companionService
npm ERR! node -v v0.10.29
npm ERR! npm -v 1.4.21
npm ERR! code ELIFECYCLE
npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/pi/alexa-avs-sample-app/samples/companionService/npm-debug.log
npm ERR! not ok code 0
缺少哪个软件包需要安装？ 预先感谢您的帮助！