Solve “npm ERR! missing script: start”

Check if there is a “node_modules” directory
If not, enter the command first:

				
					npm install
				
			

Next step.
Open the package.json file and add the following

				
					"scripts": {
    "start": "node dev-server.js 8080"
  },

				
			

Add node to the start file name you want to run (no need to add a directory in the root directory, other directories need a directory, the root directory is ./) and  the port number

*Notice! *The last comma is unnecessary if added to the end of the file.

After the modification is complete, use npm start again.

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