Ionic serve error in ubuntu 14.04LTS


#1

I am getting this error. Whenever I run >$ ionic serve

> ionic-hello-world@0.0.0 ionic:serve /home/itsme/Desktop/Application/navigationApp
> ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"

module.js:327
    throw err;
    ^

Error: Cannot find module 'reflect-metadata'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/home/itsme/Desktop/Application/navigationApp/node_modules/@ionic/app-scripts/dist/aot/aot-compiler.js:5:1)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)

npm ERR! Linux 3.13.0-117-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "ionic:serve" "--" "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"
npm ERR! node v4.8.2
npm ERR! npm  v2.15.11
npm ERR! code ELIFECYCLE
npm ERR! ionic-hello-world@0.0.0 ionic:serve: `ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the ionic-hello-world@0.0.0 ionic:serve script 'ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"'.
npm ERR! This is most likely a problem with the ionic-hello-world package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs ionic-hello-world
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! 
npm ERR!     npm owner ls ionic-hello-world
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/itsme/Desktop/Application/navigationApp/npm-debug.log
There was an error serving your Ionic application: There was an error with the spawned command: serve

System Information is

Cordova CLI: 7.0.0 
Ionic Framework Version: 3.1.1
Ionic CLI Version: 2.2.3
Ionic App Lib Version: 2.2.1
Ionic App Scripts Version: 1.3.6
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Linux 3.13
Node Version: v4.8.2
Xcode version: Not installed

How can I solve this problem…

Please help…