NPM run build failed to package err! Missing script: build

A vUE project packaging error occurred

PS D:\****\*****> npm run build
npm ERR! missing script: build

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\***\AppData\Roaming\npm-cache\_logs\2020-11-25T02_01_03_914Z-debug.log

“Build :prod” : “Ue -cli- Service build” under the scripts in package. Json

"scripts": {
    "dev": "vue-cli-service serve",
    "build:prod": "vue-cli-service build",
    "build:stage": "vue-cli-service build --mode staging",
    "preview": "node build/index.js --preview",
    "lint": "eslint --ext .js,.vue src",
    "test:unit": "jest --clearCache && vue-cli-service test:unit",
    "test:ci": "npm run lint && npm run test:unit",
    "svgo": "svgo -f src/icons/svg --config=src/icons/svgo.yml",
    "new": "plop"

SO you can’t use NPM run build to package

 npm run build:prod --report

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