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v4: ionic serve `Error: listen EADDRINUSE :::53703`

See original GitHub issue

Description: When using CLI v4 with a Ionic 3 project, the ionic serve command only works the first time.

After stopping the command with CTRL+C, running ionic serve again results in a error.

Restarting the computer fixes the problem.

Steps to Reproduce:

Run ionic serve using CLI v4rc11 in a Ionic 3 Project
Stop the serve command (CTRL+C)
Run ionic serve again

Output:

> ionic-app-scripts serve --address 0.0.0.0 --port 8101 --livereload-port 35730 --dev-logger-port 53703 --nobrowser
[app-scripts] [12:31:03]  ionic-app-scripts 3.1.10
[app-scripts] [12:31:03]  watch started ...
[app-scripts] [12:31:03]  build dev started ...
[app-scripts] events.js:183
[app-scripts]       throw er; // Unhandled 'error' event
[app-scripts]       ^
[app-scripts]
[app-scripts] Error: listen EADDRINUSE :::53703
[app-scripts]     at Object._errnoException (util.js:992:11)
[app-scripts]     at _exceptionWithHostPort (util.js:1014:20)
[app-scripts]     at Server.setupListenHandle [as _listen2] (net.js:1355:14)
[app-scripts]     at listenInCluster (net.js:1396:12)
[app-scripts]     at Server.listen (net.js:1480:7)
[app-scripts]     at new WebSocketServer (C:\Users\***\node_modules\ws\lib\WebSocketServer.js:77:20)
[app-scripts]     at Object.createNotificationServer (C:\***\node_modules\@ionic\app-scripts\dist\dev-server\notification-server.js:66:15)
[app-scripts]     at C:\Users\***\node_modules\@ionic\app-scripts\dist\serve.js:58:31
[app-scripts]     at <anonymous>
[app-scripts]     at process._tickCallback (internal/process/next_tick.js:188:7)

[ERROR] A utility CLI has unexpectedly closed.

        The Ionic CLI will exit. Please check any output above for error details.

My ionic info:

Ionic:

   ionic (Ionic CLI)  : 4.0.0-rc.11 (C:\Users\***\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework    : ionic-angular 3.7.1
   @ionic/app-scripts : 3.1.10

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : none

System:

   Android SDK Tools : 26.0.2
   NodeJS            : v8.11.3 (C:\Program Files\nodejs\node.exe)
   npm               : 5.6.0
   OS                : Windows 10

Issue Analytics

State:
Created 5 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

fedmecommented, Jul 12, 2018

@dwieeb Seems to work now but the browser fails to lunch, getting this error instead:

Also the port seems to be different at every ionic serve run (always incremented by one).

I should say I am on a different computer right now, this new issue could be totally unrelated. Will be back at the same computer on Monday and will test it then.

0reactions

imhoffdcommented, Jul 28, 2018

No. This is the fix: npm install @ionic/app-scripts@latest

This issue is resolved. Please create new issues if necessary. @raimaj