Error : listen EADDRINUSE: address already in use

[udhayakumarcp]

• Versions: node@v14.21.3, linux@6.8.0-45-generic
• nodemon -v: 3.1.7 (tried in all version, facing the same issue )
• Operating system/terminal environment (powershell, gitshell, etc): Ubuntu 24.04.1 LTS
• Using Docker? What image: No
• Command you ran: nodemon

Expected behaviour

The application should run

Actual behaviour

Facing the address in use error

Steps to reproduce

• Do the folwing in the Ubuntu 24 LTS
• Install node 14 LTS
• Install the nodemon as Dev dependencies by npm i -D nodmeon@latest
• Add the script in the package.json file watch: nodemon
• Add the below config file in the project root

  {
  "watch": ["app", ".env"],
  "ext": "ts",
  "ignore": ["app/**/*.spec.ts"],
  "exec": "ts-node ./app/index.ts",
  "env": {
  "NODE_ENV": "development"
  }
  }

• Run the app by the command npm run watch

[Satvik1769]

have you tried restarting your computer, may be there is an instance running beforehand so you would have to kill it before trying to run again on same port

[udhayakumarcp]

have you tried restarting your computer, may be there is an instance running beforehand so you would have to kill it before trying to run again on same port

I tried lsof. Also, it is not working even I chnage the ports to listern lsof -i tcp COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 5486 udhayakumar 23u IPv4 40887 0t0 TCP *:3001 (LISTEN) code-384f 25910 udhayakumar 9u IPv4 305639 0t0 TCP localhost:37065 (LISTEN) code-384f 25910 udhayakumar 12u IPv4 304746 0t0 TCP localhost:37065->localhost:35124 (ESTABLISHED)

[ravin00]

I think some different address is already running in the terminal i think that's the issue. So if you basically have the localhost to run on the port 3000 it should run their but since the port 3000 is already running that's why the the localhost is running on 3001

[udhayakumarcp]

I think some different address is already running in the terminal i think that's the issue. So if you basically have the localhost to run on the port 3000 it should run their but since the port 3000 is already running that's why the the localhost is running on 3001

I tried with ports 3000, 3001, 3002, 3003, 3004, 3005.

[udhayakumarcp]

have you tried restarting your computer, may be there is an instance running beforehand so you would have to kill it before trying to run again on same port

Restarting is worked.