Ionic serve not working in Ionic 3

Question

My Ionic info:

cli packages: (/usr/lib/node_modules)

@ionic/cli-utils  : 1.9.2
ionic (Ionic CLI) : 3.9.2

global packages:

Cordova CLI : 7.0.1 

local pack         


        

Answer 1

Try like this

ionic serve --verbose =>didn’t work, there were errors;

npm run ionic:build --verbose =>ran, finnished with OK.

Answer 2

Delete the node_modules folder and then use the command

npm install

followed by

ionic serve--verbose

Hope that it works fine.

Answer 3

I think your prob is the

NODE version (6.9.1) .. 

can you just try to upgrade to 9.1.0 or more?

Answer 4

I have faced such a problem, tried a fresh new app, worked perfectly, tried another old app, also worked perfectly.

Tried to stop using some modules (clipboard in my case and another one), solved the problem, in my case it was an error in the way I am importing or using it.

ionic 5 is my ionic version

Hope this will help someone

Answer 5

my configurations for running ionic 3 application:

cli packages: (/usr/local/lib/node_modules)

@ionic/cli-utils  : 1.19.1
ionic (Ionic CLI) : 3.19.1

global packages:

cordova (Cordova CLI) : 8.0.0 

local packages:

@ionic/app-scripts : 3.1.7
Cordova Platforms  : android 6.3.0
Ionic Framework    : ionic-angular 3.9.2

System:

Android SDK Tools : 26.1.1
Node              : v8.2.1
npm               : 5.5.0 
OS                : Linux 4.4

Environment Variables:

ANDROID_HOME : /root/Android/Sdk

Misc:

backend : pro

Answer 6

Include below script in the package.json file

"browser": "ionic-app-scripts serve --sourceMap source-map --iscordovaserve --wwwDir platforms/browser/www/ --buildDir platforms/browser/www/build"
and run

After It Run npm run browser