Hi everyone!
I am new to ionic 2… and I have to submit a project during this week, but I am getting this problem and really this is the second time I put this issue here 
and i did not get any solution.
The issue is that after I run ionic serve I get a browser, but if I made any changes in the code they wont be uploaded in the page and when I refresh it I will get localhost refused to connect.
So each time I have to run ionic serve to get the changes I done in my code.
the output of ionic serve :
$ ionic serve
ionic-app-base@ ionic:serve C:\Users\dana\myTest
ionic-app-scripts serve “–v2” “–address” “0.0.0.0” “–port” “8100” “–livereload-port” “35729”
[12:35:28] ionic-app-scripts 1.1.4
[12:35:29] watch started …
[12:35:29] build dev started …
[12:35:29] clean started …
[12:35:29] clean finished in 66 ms
[12:35:29] copy started …
[12:35:29] transpile started …
[12:35:49] transpile finished in 20.71 s
[12:35:49] preprocess started …
[12:35:49] preprocess finished in less than 1 ms
[12:35:49] webpack started …
[12:35:53] copy finished in 24.45 s
[12:36:10] webpack finished in 20.51 s
[12:36:10] sass started …
[12:36:22] sass finished in 12.20 s
[12:36:22] postprocess started …
[12:36:22] postprocess finished in 1 ms
[12:36:22] lint started …
[12:36:22] build dev finished in 53.66 s
[12:36:25] watch ready in 56.19 s
[12:36:25] dev server running: http://localhost:8100/
[12:36:37] lint finished in 15.36 s
C:\Users\dana\myTest\node_modules@ionic\app-scripts\node_modules\tiny-lr\src\server.js:266
console.error(’… Uhoh. Got error %s …’, e.message);
^
TypeError: Cannot read property ‘message’ of undefined
at Server.error (C:\Users\dana\myTest\node_modules@ionic\app-scripts\node_modules\tiny-lr\src\server.js:266:52)
at Socket. (C:\Users\dana\myTest\node_modules@ionic\app-scripts\node_modules\tiny-lr\src\server.js:217:22)
at emitOne (events.js:101:20)
at Socket.emit (events.js:188:7)
at onwriteError (streamwritable.js:346:10)
at onwrite (streamwritable.js:364:5)
at WritableState.onwrite (streamwritable.js:90:5)
at fireErrorCallbacks (net.js:471:13)
at Socket._destroy (net.js:512:3)
at Socket._writeGeneric (net.js:715:17)
npm ERR! Windows_NT 6.3.9600
npm ERR! argv “C:\Program Files\nodejs\node.exe” “C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js” “run” “ionic:serve” “–” “–v2” “–address” “0.0.0.0” “–port” “8100"
”–livereload-port" "35729"
npm ERR! node v6.10.1
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! ionic-app-base@ 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-app-base@ ionic:serve script ‘ionic-app-scripts serve “–v2” “–address” “0.0.0.0” “–port” “8100” “–livereload-port” “35729”’.
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 ionic-app-base 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"
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs ionic-app-base
npm ERR! Or if that isn’t available, you can get their info via:
npm ERR! npm owner ls ionic-app-base
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\dana\myTest\npm-debug.log
ionic info:
Your system information:
ordova CLI: 6.5.0
Ionic Framework Version: 2.3.0
Ionic CLI Version: 2.2.2
Ionic App Lib Version: 2.2.1
Ionic App Scripts Version: 1.1.4
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Windows 8.1
Node Version: v6.10.1
Xcode version: Not installed