npm 错误！ 缺少脚本：“开发”

Question

I am trying to create a Dapp using truffle but when I reach the stage of using the command npm run dev it gives me an error saying MISSING SCRIP. my code is as follows:

{
  "name": "eth-vreg",
  "version": "1.0.0",
  "description": "Blockchain vreg Powered By Ethereum",
  "main": "truffle-config.js",
  "directories": {
    "test": "test"
  },
  "scripts": {
    
    "dev": "lite-server",
    "test": "echo \"Error: no test specified\" && sexit 1"

  },

Answer 1

You need to specify the command to run when executing npm run . in this case node

"scripts": {
  "dev": "node lite-server",
  "test": "echo \"Error: no test specified\" && sexit 1"
}

You can read more about the scripts property here .

Answer 2

if this is the full code of your package.json , then I think your JSON code is not valid. Because you are missing closing } . And where is the dependency object?

This would be package.json

{
    "name": "eth-vreg",
    "version": "1.0.0",
    "description": "Blockchain vreg Powered By Ethereum",
    "main": "truffle-config.js",
    "directories": {
      "test": "test"
    },
    "scripts": {      
      "dev": "lite-server",
      "test": "echo \"Error: no test specified\" && sexit 1"
  
    }
}