'Trying to run "npm run devStart" on mac

This is my package.json

{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "devStart": "nodemon index.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "body-parser": "^1.19.1",
    "express": "^4.17.2",
    "mysql": "^2.18.1"
  },
  "devDependencies": {
    "nodemon": "^2.0.15"
  }
}

When trying to run npm run devStart on visual studio code terminal for mac I get the following errors

% npm run devStart
npm ERR! Missing script: "devStart"
npm ERR! Did you mean this?
npm ERR!     npm restart # Restart a package
npm ERR! To see a list of scripts, run:
npm ERR!   npm run
...


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