Error when running ionic serve

Ionic Framework
1

Hi, i have a problem when running the ionic serve command

The error that shows me the ionic serve command was:

$ ionic serve
Error: spawn EPERM

    at ChildProcess.spawn (internal/child_process.js:366:11)
    at Object.spawn (child_process.js:538:9)
    at spawn 
(/usr/local/lib/node_modules/ionic/node_modules/cross-spawn/index.js:12:24)
    at spawn 
(/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:173:12)
    at Subprocess.spawn 
(/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:146:16)
    at Shell.<anonymous> (/usr/local/lib/node_modules/ionic/lib/shell.js:162:27)
    at Generator.next (<anonymous>)
    at fulfilled 
(/usr/local/lib/node_modules/ionic/node_modules/tslib/tslib.js:104:62)

My ionic serve --verbose output is:

ionic serve --verbose
  ionic:lib Terminal info: { tty: true, ci: false, windows: false } +0ms
  ionic:lib CLI global options: { _: [ 'serve' ], help: null, h: null, verbose: true, quiet: null, interactive: true, color: true, confirm: null, json: null, project: null, '--': [] } +4ms
  ionic:lib:project Project type from config: @ionic/angular (angular) +0ms
  ionic:lib:project Project details: { configPath: '/Users/amador/Documents/pantoapp/ionic.config.json', errors: [], context: 'app', type: 'angular' } +1ms
  ionic Context: { binPath: '/usr/local/lib/node_modules/ionic/bin/ionic', libPath: '/usr/local/lib/node_modules/ionic', execPath: '/Users/amador/Documents/pantoapp', version: '4.12.0' } +0ms
  ionic:lib:telemetry Sending telemetry for command: 'ionic serve' [ '--verbose', '--interactive', '--color' ] +0ms
  ionic:lib:hooks Looking for ionic:serve:before npm script. +0ms
  ionic:utils-network checking for open port on 0.0.0.0:8100 +0ms
  ionic:utils-network checking for open port on ::1:8100 +18ms
  ionic:utils-network checking for open port on 127.0.0.1:8100 +3ms
  ionic:utils-network checking for open port on fe80::1:8100 +0ms
  ionic:utils-network error while checking fe80::1:8100: { Error: listen EADDRNOTAVAIL: address not available fe80::1:8100 at Server.setupListenHandle [as _listen2] (net.js:1253:19) at listenInCluster (net.js:1318:12) at doListen (net.js:1451:7) at process._tickCallback (internal/process/next_tick.js:63:19) code: 'EADDRNOTAVAIL', errno: 'EADDRNOTAVAIL', syscall: 'listen', address: 'fe80::1', port: 8100 } +1ms
  ionic:utils-network checking for open port on fe80::ca69:cdff:fe98:8560:8100 +1ms
  ionic:utils-network error while checking fe80::ca69:cdff:fe98:8560:8100: { Error: listen EADDRNOTAVAIL: address not available fe80::ca69:cdff:fe98:8560:8100 at Server.setupListenHandle [as _listen2] (net.js:1253:19) at listenInCluster (net.js:1318:12) at doListen (net.js:1451:7) at process._tickCallback (internal/process/next_tick.js:63:19) code: 'EADDRNOTAVAIL', errno: 'EADDRNOTAVAIL', syscall: 'listen', address: 'fe80::ca69:cdff:fe98:8560', port: 8100 } +0ms
  ionic:utils-network checking for open port on 192.168.10.8:8100 +1ms
  ionic:utils-network checking for open port on 2803:b780:17:254:ca69:cdff:fe98:8560:8100 +0ms
  ionic:utils-network checking for open port on 2803:b780:17:254:982e:ca2d:2d17:8340:8100 +1ms
  ionic:utils-network checking for open port on fe80::60cd:adff:fed4:9464:8100 +0ms
  ionic:utils-network error while checking fe80::60cd:adff:fed4:9464:8100: { Error: listen EADDRNOTAVAIL: address not available fe80::60cd:adff:fed4:9464:8100 at Server.setupListenHandle [as _listen2] (net.js:1253:19) at listenInCluster (net.js:1318:12) at doListen (net.js:1451:7) at process._tickCallback (internal/process/next_tick.js:63:19) code: 'EADDRNOTAVAIL', errno: 'EADDRNOTAVAIL', syscall: 'listen', address: 'fe80::60cd:adff:fed4:9464', port: 8100 } +0ms
  ionic:lib:serve Looking for ionic:serve npm script. +0ms
Error: spawn EPERM

    at ChildProcess.spawn (internal/child_process.js:366:11)
    at Object.spawn (child_process.js:538:9)
    at spawn 
(/usr/local/lib/node_modules/ionic/node_modules/cross-spawn/index.js:12:24)
    at spawn 
(/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:173:12)
    at Subprocess.spawn 
(/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:146:16)
    at Shell.<anonymous> (/usr/local/lib/node_modules/ionic/lib/shell.js:162:27)
    at Generator.next (<anonymous>)
    at fulfilled 
(/usr/local/lib/node_modules/ionic/node_modules/tslib/tslib.js:104:62)
  ionic Error: spawn EPERM
  ionic     at ChildProcess.spawn (internal/child_process.js:366:11)
  ionic     at Object.spawn (child_process.js:538:9)
  ionic     at spawn (/usr/local/lib/node_modules/ionic/node_modules/cross-spawn/index.js:12:24)
  ionic     at spawn (/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:173:12)
  ionic     at Subprocess.spawn (/usr/local/lib/node_modules/ionic/node_modules/@ionic/utils-subprocess/dist/index.js:146:16)
  ionic     at Shell.<anonymous> (/usr/local/lib/node_modules/ionic/lib/shell.js:162:27)
  ionic     at Generator.next (<anonymous>)
  ionic     at fulfilled (/usr/local/lib/node_modules/ionic/node_modules/tslib/tslib.js:104:62) +149ms

The ionic info output:

$ ionic info
[WARN] You are not in an Ionic project directory. Project context may be 
       missing.

Ionic:

   ionic (Ionic CLI) : 4.12.0

System:

   NodeJS : v10.15.3
   npm    : 6.9.0
   OS     : OS X Yosemite

I hope you can help me!

2

Verify that your active directory in your terminal is in fact the top level of your ionic project. If you run ls in the terminal you should see:
angular.json package-lock.json tslint.json
e2e package.json typings
ionic.config.json src
node_modules tsconfig.json

3

I run ls on the /path-app in the terminal, the output is:

$ ls
README.md		node_modules		src
angular.json		package-lock.json	tsconfig.json
config.xml		package.json		tslint.json
e2e			plugins			www
ionic.config.json	resources
4

Did you fix that? I am facing the same issue (same Ionic CLI and NodeJS version, but on Windows 2012). Everything was working fine, and after installing @ionic-native/screen-orientation plugin, I started having this issue. I know this may sound weird, but this was the only thing I changed in my environment.

After that, I uninstalled ionic, cli, node, etc, cleaned up cache, restarted the machine a bunch of times, but cannot make this work again.

Thanks

1 Like
5

Any updates on solution to fix this problem?

6
  1. ionic cordova platform rm android
  2. ionic cordova platform add android
  3. delete folder node_modules
  4. npm install
1 Like
7

I encountered the same issue after cloning a project on github and running npm install solved my issue

8

I have a very similar problem, still not solved.
My app cannot be compiled anymore. “Ionic serve” or “ionic cordova build android” gives:

Error: spawn UNKNOWN

at ChildProcess.spawn (internal/child_process.js:407:11)

The solution of @hernandck does not give the hoped result in my case.

  • ionic/cli v.6.18.1
  • cordova 10.0.0

Anyone has a suggestion?
Thankyou.

9

Once disable your antivirus @carlo3180, than it will work fine.

1 Like
10

@afsar95 disable your antivirus, and error Error: spawn UNKNOWN exist

ionic info

Ionic:

Ionic CLI : 6.19.0

Utility:

cordova-res : 0.15.4
native-run : not installed globally

System:

NodeJS : v16.13.1
npm : 8.3.0
OS : Windows 10

11

disable antivirus did work for me, thanks!

12

It didn’t work for me